I've got these nifty 3x8 rapidfire shifters I want to use on my daughter's bike because she fonds the twist shifters difficult to use, and similar rapidfire shifters worked great for her on a previous bike. the problem is these shifters come with integrated V-brake levers, and she has side-pull brakes. I know you shouldn't use V brakes with conventional levers, but howsabout the other way around? I don't want to sacrifice braking for shifting, so if the answer is that they don't work well with sidepulls I won't use them. Thanks