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)
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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.

This thread is for comments about our Stealth Rogue guide.

This thread is for comments about our Secret Rogue deck guide.