I can only imagine a brake would help big time with that. I've had my share of folders but never a poly one. I did have a poly AKS-762 like your other one and yes, they are of the best AK quality.
Never used one of those brakes, pretty good though ey?
I've owned a Yugo NPAPDF, underfolders are cool & I can imagine the Poly would have a very nice tight lock up. Been contemplating turning my Draco into one but I'm not a fan of registering anything with the ATF so it will probably just stay a pistol with a one point sling.