Hoping there is still enough activity here to help me out. Just got myself a 09 EFI Z to replace my 06 which so far im enjoying. However, I dont know the history of either machine but the 06 has what feels like a heap more pull from bottom and I can seem to hold a gear higher through some corners - particularity above 3rd. I dont think there is too much in it but the seat of the pants feel I prefer the 06 as i can break traction easier and keep the revs high. The 06 has a slip on and KN powerlid, im guessing its been jetted well on the Mikuni as ive never had an issue with it. The 09 has a Yosh slip on but my question is do i get a fuel controller and open the lid? Is it going to make that much difference or is it just pissing money up the wall. Id be looking at a EHS controller as thats probably all i can get shipped down here. Im pretty sure im faster on the 09 just because the handling is so much better. I just want to have more snap right off the throttle.