Im playing rogue assa in cata classic and after read some guide I don't understand some things about stats. 
I know as a rogue assa I have to priories hit rating until the spell hit cap of 17% (1332 if I remember) but i dont understand how to manage other stats like mastery and haste/crit or expertise. 
Did I have to put full mastery ? and reforge all the crit chance, expertise and reforge haste at least ? Or did I have to balance mastery and haste ?
Can someone help me to understand in wich ordre and priority I have to manage stats as Assa Rogue in wow cata classic ?

Children - Zul'jin - Horde - 3 nights/week (9 hours) - Hardcore
Vault of the Incarnates - M 8/8 (Cutting Edge)
Sepulcher of the First Ones - M 11/11 (Cutting Edge)
Apply here!

Raid Schedule:
Tuesday - 8:00 PM EST - 11:00 PM EST
Wednesday - 8:00 PM EST - 11:00 PM EST
Thursday - 8:00 PM EST - 11:00 PM EST
We add a Monday raid to the first week of each raid tier.
Holidays will be rescheduled.
Current Recruitment Needs:
High Priority:
• Enhancement Shaman
• DPS Death Knight
Medium Priority:
• Rogue
Low Priority:
• Healers
All classes will be considered even if not listed in this post.
Server Information:
Zul'jin
Chicago Datacenter
Eastern Realm Time
Contacts:
Battle.net: Madness (Madness#12309) / Discord: Madness (Madness#5716)
About Us:
Children is a guild founded at the start of Shadowlands, we accomplished CE in all three raid tiers during the expansion, also obtaining CE in Vault. We are looking to continue this pattern for the rest of Dragonflight, and are looking to pick up new members to join us. We look forward to hearing from you.

This thread is for comments about our Outlaw Rogue Leveling Guide.

Critical Experiment of Draenor EU - a late night raid guild
LFR Raiders for 9.2. Especially DPS
Current Recruitment can be found at : http://critexp.enjin.com/recruitment
-note: We will consider all good applications
-socials are welcome to join.
Critical Experiment is based on the Horde side of Draenor - est 2007. We are a late night raiding guild. We are looking for mature players with good knowledge of their class and role within a raid environment.
We raid (21.00-00.00) one day per week ( Monday). We are mature players who have other commitments at 'normal' raid times, so we take the opportunity to get together and play at a later hour.
What you can expect to get from us?
* We aim to clear all content atleast on Heroic difficulty. When we can, on top of that we try getting some Mythic kills too.
* A relaxed but firm raiding atmosphere.
* A group of skilled raiders who enjoy seeking progression in PvE raiding.
* A friendly home. Our members are sociable players and enjoy raiding old content, doing challenge mode, achievement runs and alts runs wherever possible. As such, a raiders friends/family are welcome in CE
* A semi-hardcore raiding guild whose aim is to use our limited hours in the best way that we can, maintaining progress with a decent atmosphere.
* We provide all "raiders" with free repairs from the Guild Bank 24/7. Members can also make use of the extensive mats available in the Guild Bank, all of which are provided for raiding.
What do we expect from you if you raid with us?
* Maturity in both age and attitude towards your fellow team mates.
* A high level of skill and sensible raiding. Know your role, class and the encounters.
* Punctuality - Showing up for raids in good time and being well prepared with flasks, food buffs, etc (though supplied by GB better be safe then sorry).
* Able to attend most of the scheduled raids
* You’re able to take constructive criticism during raids and subsequently able to use that criticism to improve your level of skill, and play.
* We expect all members to be able to connect to "Discord". Mic is optional.
For questions, feel free to contact one of the current Officers of Crit exp in game or on our forums (Where you can also apply to Critical Experiment)
To make your apply go to "http://critexp.enjin.com/recruitment".
Joní(GM)(T1000#11957) Officers: Snakesblood
www.critexp.enjin.com

Hey. I'm Justice, GM of <Indomitus> on Horde Draenor EU. <Indomitus> is a recently made guild born from the ambition and devotion of progression focused players. We have a strong core of players with Mythic backgrounds and we are eager to try for Cutting Edge in Shadowlands and so we formed <Indomitus> to have that Mythic progression focus. We're currently 10/10 HC and 6/10M and looking for more people to join us in Mythic Castle Nathria. Our current goal is to clear as many Mythic encounters as possible this tier whilst building a strong and stable roster for the next and future tiers so we can push progression early.
We’ve also recently begun a Friday evening Heroic/alt run and are happy to accept players looking for a more relaxed Heroic experience.
Additionally, we're also looking for fun players who focus on Mythic+ or even just socialising. As we're a relatively new guild now is the perfect time to join to help shape the future of the guild and become an integral part of it.
[Raiding Schedule]:
Mythic: Tuesday & Thursday 8pm - 11pm realm time
Heroic/Alt Run: Friday 8pm - 11pm realm time
[Recruitment]:
• Brewmaster Monk
• Unholy DK
• Warlock
[Requirements]:
• We have a set of guild rules on our discord that cover the usual things you'd expect to see, e.g. no toxicity, hate speech or harassment, being a good team player and things like that.
• We have a set of raiding rules on our discord that cover things like researching encounters, knowing your class and being proactive in improving, being reliable and punctual and having a microphone.
If you are interested in joining and would like to chat to get more information please contact me or one of our officers with the below details:
JusticeGlory#1448 (Discord)
Justice#2530 (Bnet)
Cera#9800 (Discord)
Cyphron#2949 (Bnet)