My .75 has ten gallons through it this summer and feels like new, and has never dead sticked once. It is the most reliable engine I have ever owned. It starts with a two finger snap of the spinner and does not miss a beat.
But mine too has a 900-1,000 rpm diesleling thing going on once in a while too even when the barrel is closed, but it does not bother me one bit.
My back cover and carb throat were sealed with silocone since day one. I would use another .75 in a heart beat if I had a application for it. In fact another club member just bought one after watching mine scream all summer. I cannot even count how many compliments I had this summer at all the different flyins I attended about how that engine pulls the plane.
I have more comfidence in the this engine than any I have ever owned.
I have seen every thing from OS's (yes OS's) Saito's, ZDZ's, 3W's land dead stick this summer, but that cheap TH.75 never miss's a beat, and really screams to boot.