OK, I tried to be objective with my advice, to some extent somewhat.
If I were to spend my hard earned money today, on another 50cc class engine NIB, it would be the DA~50 without so much as a second thought.
Everything about my experience with DA has been unlike ever before, first class treatment every step of the way starting from the first phone call.
And FWIW, DA gave me the prop jig at no charge.
Furthermore I drilled the prop on my lap, with a hand drill the first 2 times I drilled my props. Both came out perfect because as I drilled one hole, I filled it with a bolt, easily aligning the prop jig.
Total time for 2 props drilled in my lap was 30 minuets.
No big deal.

Sorry for the sales pitch, but I tried to be objective.
BTW I do love my Brison 3.2, but I bought it used, for substantially less than new.