I strongly recomment that you not bend the stanchions.. That would weaken
them..

The proper way to deal with the problem you relate, is to shim the stanchion
bases to compensate for the angle..

My stanchions are attached to the 6" bullwark and each base has a fitted
wedge behind it to bring the stanchion to a vertical..


--
My opinion and experience. FWIW

Steve
s/v Good Intentions