I was never told this
I used the quick shifter a lot, it's a joy and part of the fun of this bike
when you mention remove baffle what slip on do you have fitted?
the standard exhaust is a major job of cutting to remove baffle and is very hard to look neat, the Akra can easily be removed
playing with the exhaust will change fuelling slightly but I doubt it would have an adverse affect
Joy is riding your bike to it's limit