RE: Help for Sig SkyBolt
Sure, the 91 4 stroke would be a great choice. I did have to add a small amount of lead to the nose of mine as well. Sorry but I do not agree with gp300 on the aileron issue. I have seen several of these over the years, especially years ago when they were very popular, having problems with top wing aileron problems. There is no need in asking for problems, I strongly recommend that you go to the dual servo set up, if nothing else it is cheap insurance.