Hi, I fly planes up to 160cc, and have learned several lessons not mentioned above. My 10 gassers are all slightly different in starting procedure, so one thing I do is focus for a few moments on what this specific plane "likes" before I touch the prop. The other thing I have learned is follow thru with each flip, throwing my right hand well to my left and away from the prop before returning my hand to the prop for the next flip. On at least one occasion, my hand was on the way back to the prop too soon for the next flip when it either popped or actually started.
I had a DA-85 for a while and found it no different or more difficult to start than a DA-50 or for that matter, a DA-100.