My original question--It appears that the engine thrust line is excessive. Has anyone changed this closer to zero, zero?

I have answered my own question. I removed the right thrust and maidened with a Jett .46.
No wheels, moved the elevon servos topside, sealed the gap on the control surfaces, used a 10 oz. fuel tank and it weighed in at just under 3.5 lbs. I also changed the control surfaces to solid 1/4inch stock. Only beveled the LE.

Good flying plane.

When I purchased my Jett at the Toledo show, I was asked if I wanted to go Fast, Very fast or Really fast? Their .40, .46 and .50

I first placed the SJ .46 on a GP Viper. 3.5Lbs -- Very-fast
Second plane was a Shrike 40. 5Lbs-- below Fast. It was a tub.
Now on this Mach Racer it is Really Fast.

On the bench I see 17,500 rpm with an APC 9X8. We are estimating 125mph.

rcs