Re: dropping: aero articles tell us it improves aero and in the real world that may be, but the gains, if any, are going to be quite small.
I'd put the aerocap as #1 on the To-Do list.
I love the concept of belly pans as much as anyone, but they too seem to fall a bit short of expectation as far as results. I'd say they're essential for an all-out fe effort though.
I made some prototype skirts that were held on with 1/4 turn spring loaded clips that I also made. Tool-less remove/replace, not difficult. Mine did interfere with checking tire pressure though, and I would definitely make ease of checking tire pressure a top design priority if I ever make skirts again.
You are gonna have a really tough time finding parts for your V4, as I'm sure you have the only Ranger V4 in existence!
