From what I remember the Enderle system was designed around it being tuned by a guy who only knew constant flow injection systems, so the designed-in tuning approach was much like that. It left a LOT that EFI is capable of on the table. That in my mind makes the MS system a better system; but it really depends on what you're familiar with, how much you're willing to stretch around something new, and what you want out of the engine.