I'm pleased with the results of the IC on my 09 PGT. I rode a year without it and never noticed a low-end power difference. I can tell you this...ever since installing it I've had to glance back in my snow dust to see if WyoBoy was still coming! So that should help you out in your decision!
LOL, or maybe I kept letting off so I would not plaster you with spring Ice chunks, On spring days like that I wouldn't mind the IC, it is an advantage. Still can't believe I landed that unexpected launch. Which you saw well from behind. Your sled does run strong though, in spring snow.