If you hit the limiter and upshift, you are not going to accelerate any quicker than if you shift slightly earlier without the engine being cut by the limiter. What power there is after the limit is static, not increasing. The limiter isn't a shift indicator, but a protection against abuse. There are shift lights that display the ideal shift point to avoid the limiter or one can simply use a handy tachometer. I've unintentionally hit the limits on my bikes while street racing, often followed by some special words. YMMV.