RE: Da 85 feedback?
My experience is different. I have two 35% right now, an Edge with an 85 and I Giles with a DA-100. I've been flying them alternately, fly one while I work on the other.
To be honest I can't see much difference between the two engines. Equal in smootness, equal in power, both start easy, spin the same prop, use about the same amount of fuel. The major difference is the 85 is 1.75 lbs. lighter and $350 cheaper, and uses a single canister instead of two, saving another $150 and 1/3 pound.
TF