i never had any problems with the Byron setup w/ an OS 91 VR mounted inverted, i did use their manifold which prevented the flooding out problems some people had who didn't use it, the PITA was the 4' starter shaft up the tail pipe, i never did like that. they flew great just not overly fast and the cheater hole required some trim mixing to prevent a nose up if throttle was quickly chopped. I've seen allot of the F-16's being sold here and there the past few yrs, they are good starter jets as are most of Yellow Aircraft ones and if you can find a BVM F-86 they are excellent beginner jets.

kc