Actually the opposite I think nitro wing told me what I needed to know. under load I am running into problems with the servos. I think its is cheap servo's. I wasn't aware the slick was set up for a single servo. I bought it used and this is how it was set up.. I assumed thats how it was supposed to be.

cg seamed good... just slightly behind the wing tube.

like I said plane flew great... this was the only issue I could find with the flight time I have on it. I was also unaware there was a specific 3dhs thread