Irrational... a diverter valve (bypass valve) and BOV serve the same purpose... if it is referred to as a bypass valve it usually means that it has a fitting on the outlet side to put a tube to go back into the inlet side of the turbo or S/C. It can also be used as a BOV if you wanted and just not recirculate the air.
i think im having a change of heart guys, as much as i want to go through with this project i dont think I want to put this much power on the convertible, im probably going to put this entire turbo kit up for sale soon around 2.8-2.9k