I have a REV pipe and once I got my jetting dialed in the bike pulls much harder and longer than my 200 did at WOT. It's like the bike has two powerbands, one down low which is very linear and one up high that makes your arms hurt from holding on.
I can blip the throttle from closed to 50% and the bike doesn't do anything scary but instead accelerates smoothly which makes slow riding much easier than my 200. If I blip the throttle from closed to 75% or 100% then the bike comes to life with a wheelie that requires quick rear brake to prevent butt surfing and If I hold WOT in the higher gears the bike continues pulling HARD until I let off.
I also noticed I dont shift as much which could also be due to dropping a tooth on the rear.
Summary:
200cc with REV, TC2, 35mmcarb, boyseen reeds, airbox mod, 13/50
-bike needs shifted alot
-0 to 50% throttle blips would break loose rear tire, kinda fun but not good for traction.
-third gear wheelies were no problem when @ WOT
225cc REV, TC2, 35mmcarb, boyseen reeds, airbox mod, 13/49
-less shifting required, If I find myself in a gear too high when starting a hill climb the bike still motors up the hill where the 200 would require a quick downshift.
-0 to 50% throttle blips are smooth and linear without any hit but 0 to 75% blips are another story.
-fourth gear wheelies are no problem when at WOT in forth the bike accelerates smoothly then when the powervalve kicks in the front wheel flies skyward if enough traction is present :D
The bike even sounds different, lower tone that is snappier.
I have no regrets, only injuries and disgruntled riding partners.