You could add some lines why salamance should lead instead of weavile :) Thanks!
salamance or tyranitar lead, why? u can get free tangrowth, ferrothorn, skarmory, ... with flamethrower, they know your weavile's common move but not salamance, salamance mix is very important for this meta. This move set : dragon dance, flamethrower dragon claw, earthquake.
Tyran dark pulse for slowbro, but ice beam is better (for all dragon)