Looking for some tire advice.
Have been using Michelin Pilot Power (not RACE) street tires for years on my track-only Ducati 748 and they have treated me well....until now! I now run them on my 999R that has 130 hp (up from 87 on the 748), I'm still running the 180/55 rear. But now with the increased corner speed and hp they are loosing grip in corners to the point that I landed on my head late in the day on my last track outing (NJMP)

What I'd like to know is what would be recommended for the next logical step UP in rubber?
Please keep in mind that:
1. I'd rather not have to use tire warmers.
2. I buy a lot of tires during the year, so I'd like to keep the cost down!
BTW- I don't race. Trackdays only. I'm a FAST Intermidiate rider (NESBA, etc) or Slow Advanced rider (Tony's Trackdays, etc)

TIA
'Lidz