Falcon...

No problemo. Just wanna pass on some info.... A buddy and myself benchran a Ys110 with a MA 15x8 and APC 16x7. The APC was clearly too big a prop on 15% and the MA prop was faster by abt 300 rpm. However the MA prop was just beating air, and the APC was blasting everything away from its wash... scary...

Back to subject... if the MA 12x6 isnt lifting any skirts, maybe you may wanna try the scimitar series. Otherwise go for a APC.

The fuselage profile of your groovy is similar to my veko, IMO speed aint a issue. If you wanna go fast, this is not the plane...