The yak is a real nice flying plane too, but the Extra 260 will dominate in imac/precision/3D flying. The Yak in my opinion is mostly a 3D/freestyle plane. As far as 100-150cc yak 54's they do imac well, but the 260 is just simply a beast in any type of flying. The hitec 5955's, and recivers can be purchased from
www.troybuiltmodels.com along w/ the switches and etc. Also dont waste your money on buying metal servo arms. The 5955's come w/ very sturdy arms that work fine. Its what i hac on my 30% yak, and my 30% extra 260. The plane can also be purchased from them too. Buy the batteries from
www.fromeco.org Hope that helps!