Hi Tnkgnr!
It looks to me than your wings are far behind from the intakes.
In my model I found that CG works fine at 1/3 from the leading edge of the wing. That's about 95 to 97 mm.
Always better to have a little nose heavy than tail heavy condition.
My model also needs a good throw with full throttle. (It is a 70mm with a 4 cell battery, and not 64mm as I wrote in the title).
She can fly very stable but could need more power to do better loops. The only difficult thing I find is to take a decent video from my cell.Lol
I hope this helps.
Happy flights!