Flew one with a Satio 65, pretty good performer.

Can you put a couple of washers behind the motor mount?

May screw up your mounting setup on the cowling.

Hopefully, the makers of these type planes will build some right thrust into them. H9 did a nice job on the Funtana with this.

This one had a small rock, however it was controllable. Also, it was swinging a 14 inch prop, that may make a difference, too.