Having Read Cameron724's last post I would tend to agree with agexpert's views on the ST being a better all rounder. I too have had both machines. I only suggested the UCD because the original post asked specifically about 3d in a 3d forum. But for an all round flyer that can also do most 3d, the later versions of the ST are good machines. The only negative I would say about the ST is they tend to snap roll quite easily. I also agree with the views on having "Way too much" of everything. I would still go for the SK70 as an engine choice - they are a 2 stroke that is cheap but they run very much like a 4 stroke and will spin quite large props for their size.