All of us need to quit throwing rocks at each other and understand that what works for us personally does not necessarily work for the next person. This is like the Chevy guy watching a Ford guy get beat and saying “Boy those Ford’s suck! Chevy is the best.”. If you have no experience with running a Ford and don’t know what combination makes it work then the statement is way off base. Are there successful Ford’s? YES. Are there successful Chevy’s? YES.
The same thing applies in our case. Are people successfully running PA’s, RO-Jett’s, OS’s, Super Tiger’s and what other engine make comes to mind? YES!!! I find it very difficult to make a judgment about something that I have never tried. I have an opinion but I also look very carefully at who is successful with what.
I can tell you what works for me based the experience that I have had with different engines. I do have a shop full of all sorts of engines from PA’s to RO-Jett’s to OPS’s to Super Tiger’s. I don’t mean just one. You can’t just have one of anything you know. The guy who dies with the most toys wins!
So let’s put away our spears and six guns and be civil to each other and put forth that great wealth of knowledge that all of us have.
Oh by the way, Randy, Richard, Windy, Billy, Bob Hunt, John Brodak, among a multitude of others should stand up and take a bow for providing us, the stunt masses, with great products for this hobby that we all enjoy and love… IMHO 
John H.