up thrust at an idle will do you no good. It is just a little tail heavy. I have flown mine with 3 pounds of lead in the nose to get the balance to the forward edge of the CG envelope but then started taking it out a little at a time. With the forward CG the plane was a dream in the routine and langing but did not 3D as well. At 6" it still flys solid but does tend to drop the tail on landing. While it does drop the tail, it shows no sign or snapping or droping a wing even at a crawl.

At 6 5/8" you don't have to bobble the elevator to make it look like it stalled when you go for a spin entry, it will take care of that all by itself !!!