What is the largest scope that a CG-5 will handle?

I'm curious as to how big a scope a CG-5 will handle. I'm not talking about the tripod that is standard with them, but say if the CG-5 were mounted on a sturdy pier?

I may be interested in using my CG-5 clone and mount a larger scope, say my 8" SCT on it. The 8" SCT OTA weighs in at 19 pounds by itself and it is not very long.

I'd like some opinions on the sturdiness of the mount itself. I have one and it sure seems solid. I wouldn't dare mount a larger scope on it than my 120mm short tube refractor with it's aluminum tripod...but I'm curious about the mount itself, if it were on something far more stable than the aluminum tripod.

Anyone want to chime in on this one?

Thanks