Well, Thanks for the advice guys about cutting the fuselage (especially navav2002)! But it's all a little too late, as I've already cut it this morning before checking for comments. First off, after the cut, the firewall is still firmly attached to the seperate halves and there is no deviation in the two contours there. The rest of the fuse from the firewall back to right before the vertical stab is very stiff and checking with a profile guage there is no noticable differences up to that point either. The vertical stab itself is a different story. The fiberglass is very flimsy and moves easily to the touch. Here's my plan to assure proper alignment and identical shapes of the two halves. I'm going to trace out the centerline profile of one of the halves correcting for where the wing fairings need to be squared back up caused by the exsisting cracks. Allowing for the thickness of the fiberglass itself, cut two identical pieces of white board that will sit inside each fuselage half. These "inside" boards will then be each attached to their own slightly larger piece of whiteboard which I can then mate up and mark and drill for alignment pins. I will also make formers (two identical at a time) which will be placed on top of the "inside" centerline boards, at the same places, to stiffen up the vertical stab area and assure the same contours along the length of the fuselage. Working from the inside of the individual halves will be a lot easier when it comes to doing the crack repairs, and working inside the vertical stab while the fuse was still one piece was nearly impossible due to the thinness of it. I'm fairly confident that this will work, and well, that's my plan at least!