Can't give any advise. Just bought the same one on ebay a couple of days ago. Haven't got it yet. I'm leaning towards the 180 myself, the da is a little pricey for me. I'm still doing research on this plane. Found a couple articles.
http://findarticles.com/p/articles/m...n15325645/pg_1 and a thread at rc universe that might help.
http://www.rcuniverse.com/forum/m_24..._1/key_/tm.htm ,I 'm trying to keep the weight down on the engine, would like to keep servo's inside for appearance as oposed to tail mounting. Hope to hear from someone on your thread soon.