I think Cress would work wonders on your team over Slowking. It could be a Swagger variant to power up your Conk and Meta by a lot with a spread of 252 HP / 52 Def / 28 SpAtk / 176 Spdef. It 2hkoes the genies and top, terrakion and virizon with Psyshock / Ice Beam. She also lives ttar's crunch and volc's +1 bug buzz. Change Conk's spread to 252 HP / 4 Atk / 244 SpDef. It allows him to have Cress' Psyshock be a 3HKO. also consider a spread of 252 HP / 116 Atk / 4 Def / 136 SpDef for Meta. It lets him OHkO rotom with a +2 zen headbutt and also lets him survive rotom-w's water gem hydro pump. I would definitely take roost off scizor if you're using a choice band, although I would recommend taking off the choice band and giving it a steel gem with swords dance, protect, bullet punch and bug bite with technician and a spread of 252 HP / 252 Atk / 4 Spdef. On Chandy, do the 24 SpDef EVs help survive anything? If not, make it 252 HP / 252 SpAtk / 4 whatever. I would also consider adding Swagger to Dusclops (over HH?) burning your own Conk and Chandelure to get boosts sounds really cool! Just make sure the Pokemon using Swagger / WoW (cress & dusclops) go before Conk and Meta!!
gl hf and hope this helps!
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VGC 2013 San Jose: 2nd place Seniors Division