ORIGINAL: buzzard bait
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.
Jim
That's pretty much true for the entire FP line of engines.
ROG, regarding props, I had a .25 FP on a Sig Kadet Senorita and the prop I always kept coming back to was the APC 9x5.