Busted, there is some good reading over in the gas forum here on rcu about SPE motors .l The SPE is the same motor as the BCMA motor and according to those guys that engine is real nice. Those two motors are the ones I am considering as well, along with the Evolution 26. But the Evo is nearly $100 more and about the same weight. I think the Evo is a tad bit lighter. Here is the link to that thread http://www.rcuniverse.com/forum/m_3967906/tm.htm. The SPE at Ceramark is $250 the BCMA is going for $275. This is good reading about this motor . They have improved the electronic ignition a great bit. They claim the motor will 3d a nine pound plane really nice. But I am still considering a 150 Saito but am still leaning toward the gas.