Funny thing is, I did all my laddering with a Stall team that couldn't care less about Genesect. (It wasn't intentional, just how it came out) I have played with him before (both RP and Scarf) and the recent drops are only encourageing his use so I'm just going to base my decision off that. So to answer your question, I think Genesect has to go. RP is really easy to set up and, even in unfavorable conditions, can still leave a big enough dent to give your team the upper hand. Scarf is just super useful, I would bring it in at EVERY chance I got cause I knew that no matter my OP's response I was going to have the upperhand. He is almost always a win-win, the best your opponent can do is make sure he doesn't do too much damage so that you can wear it away with hazards. Having him gone will open up the metagame and make games funner. (SR was already good enough without it being the major factor in winning the Genesect wars)