Cosmos
Go to the search caption, type in "aeroworks profile edge" and you will come up with a couple older threads. Most guys are using YS 120 and Saito 150 etc. I also note that most people are cutting off one bay off the wing and building the center wing section in one piece to strenthen it. I have been studying these threads cause I have the kit and an RCS 140 to go on it. If you look at the weight of the RCS 180, it is way to heavy for the size.
Regards
Paul