i was checking out for the sprint boosters.seems like you can still purchase for$279-$300 depending on where you go.ran across an article by **** bipes.you can go to it by typing exactly. >>>>>>>>>>>>>>>>> sprint booster a technical white paper<<<<<<< technically written,but enough layman terms to make you wonder if these are worth purchasing.i too seem to have a little pedal lag.i would not mind spending money on a <needed product>but now have my doubts.how about a little input,thanks