hey guys so this is a picture of when i had coil overs I'm just using it for reference, i have custom made air struts for the rear instead of the traditional air bags separated from the shock, but my bag is very very slightly rubbing at fully aired up height, so i was wondering if i could have down some of this or bang it in like i did to the front for my front bags

heres the picture, what i want to shave or bang in is behind the spring of the coilover cause thats where my air struts sleeve is and its rubbing in back of it, is this area (behind the spring) safe to shave down or bang in a little?