Thanks for the responses and good input. I was thinking of going with a 4 stroke, but being this was going to be my first glow powered engine, I was thinking of the ease, break in and setting up of a 2 stroker might be a bit easier for a first timer. I've been flying epowered planes for a little over two years now and want to get started in glow with the 4 star. Hummmm, how tough would it be exactly for a first timer to set up a 4 stroke??? You guys have me thinking now.