Rog, I have the .25FP and it is a very sweet engine. First flip starts are the norm. Get the fuel up to the carb, one turn choke (any more and it will flood), flip briskly a couple of times unchoked, then attach the battery and flip. Electric starters are completely superfluous for this engine. I fly a very old Skylark 56 on it. The plane weighs nearly 4 lbs and really moves out on it. In very good condition the engine's worth the $35.

The 25FX also has a good reputation for handling, but it is at least 2 oz. heavier and much more powerful.

Jim