Cool. I'll probably get the Picco. There's no replacement for displacement. I have all the other mods you listed at the begining, just not the engine (yet). No one around here runs the savage, T-Maxx rules (bah, they're just different), so the only sav-mods I see are online and videos are really hard to find. Is the .26 like crazy power? My 21BB is almost shot. It goes, but it needs some more horses.
When I flew mine at night, I put two on the top centerline, one under the nose and two on each wing at the leading edge (tip and 1/3 span). Make it so you can't see the one under the nose unless you're looking at the bottom and vice versa, but the ones on the wings should always (or nearly so) be seen. The V and the 1 or 2 pattern should get you oriented.
Crap, forgot to mention that I have the hot bodies jump start (same as the HPI, just has a differnt sticker). The only problem I've had is the worn out 1 way. I got my Sav second hand and the pull start was tricky when I got it. The roto/jump start just threw too much torque at the 1 way and it caught every now and again. I oiled it up with some after run oil (smells like marvel mystery oil and is the same color) and it's working ok now (probably won't now that I said something). What was yours doing?