I HAVE DRILLED HOLES IN VERTICALS REAR SPAR CENTERED RT AND LT.TRYING TO GET CORRECT PLACEMENT FORWARD AND AFT PLANS SAY TO USE A TIGHT WIRE IN RUDDER HINGES TO CHECK FOR ALIGNMENT TO KEEP RUDDER FROM BINDING. WHEN I CENTER THE WIRE IN THE CENTER HINGE MY VERTICAL IS OUT OF PLUMB AT TOP BY 3/8 88.7 ON A DIGITAL LEVEL. I KNOW REAR BULKHEAD MUST BE OUT OF PLUMB. SHOULD I LEVEL VERTICAL AT 90 OR CENTER HINGES? I AN AFRAID IF I CENTER HINGES IT WILL MAKE LOWER FRONT OF VERTICAL TO LOW TO SLIDE REAR DECK SKIN UNDER. YOU CAN ONLY TRIM SO MUCH MATERIAL ON VERTICAL BOTTOM BEFORE YOU GET INTO THE RIVET LINE. ANY SUGGESTIONS WELCOME. RV8 VERTICAL