I can comment on the aeroworks and the TOC, SD. Both are very good quality, and fly nice if kept light and balanced. There is a little more to put together with the SD, but you would be happy with either. I was not to impressed with my buddies majic hand yak, although a good price, you get what you pay for. One other thing, I think the gear mounting system on the SD is much better, unless Aeroworks has cought up to them in that respect.