seanychen , First thing first, since nobody has actually HAD one of the GP SkyBolt ARFs yet, I think it might be a little precipitous to start in on the gloom-and-doom and add-a-pound-of-lead-to-the-nose warnings, don't you? The model is advertised as a .60 to .90 size, so I have absolutely no reason to think that using a Saito .91 in the nose would be anything less than ample. A 4-stroke .91 is often heavier than a 2-stroke 60, so my plans should if anything take the nose to the heavier side.

balsabandit, I myself have never seen a Sig Skybolt, although I wanted to. Is it something that Sig still offers? If so, I can go and check out their website. Well, I'll give it a check anyway..

Jim