RE: PRIMUS Build
My Taurus is one of the original Top Flight kits with the pre-bent L.E. I can tell you from experience that it is like an "egg shell", and quite fragile. I've had two "cracked eggs"so far---what you do to repair is to manipulate the pieces together like putting Humpy-Dumpty back together. If the damage isn't too severe, it's actually easier to fix this way. I am very aware of that L.E. now, and take care to not damage it again.