Mike convinced me a while back that the thrust plates are the way to go, therefore my pending order. No guess work. On my last one I had two 1/16" washers stacked on top and bottom to angle it. As far as what angle that attained...... I don't know. What I do know is that it needed more, but the plane didn't want to hang around that long so I never got around to it. The plates are like $2.50 for three. As far as the OS engine, I feel the same about my trusty Saito, after much pondering and lamenting over the big ol' YS I decided that with that money I would be better off with the Saito and saving for a gas engine for my next act............28 percent WILD HARE EXTRA LS oohhhh yeaaahhhhhh I think I'm getting wet !!!! Joe