I think the biggest difference not advantage is the non pressure system. I like it a lot better. I just drilled out a fuel dot and hook it up the the overflow and the other gets hooked to the tank and put a fuel tee in there and it works great. I have well over 300 flights on my DZ and it is holding up great. The think i think is a advantage over the L is that is doesnt shake nearly as bad.

Andrew Jesky