I've had 2...just love them. Current one has .91 4-stroke but if I did it again it would be a Saito 1.00. I did a sunburst blue/white and it looks pretty much like JCB's. A LOT less carving than traditional Astro-Hog. I've got to build another when my current one gives up the ghost. But right now I'm working on the Spacewalker II and have to say the quality of the balsa coming out of Sig has decreased drastically over the years (as compared say to BUSA kits).