WHOOP WHOOP WARNING. I installed the strut on the pilots door pictured aboove and soon after tried to pull it down from the front edge about a foot outboard like I always did with the suction cup...crack...split.  The door - original fiberglass and Plexiglas bubble door supplied by Zenith - broke at the fiberglass corner and radiated out down and aft in the Plexiglas.  Quite a bit of bending torq…