Wow. Soooo nice and clean. Did you took TMs off second DR? Or you have second set? The only thing - since photos are so detailed it is easy to see how different is SR43 frame comparing to SR41/42. I mean - SR43 frame is SO MUCH beefier...every crucial area is reinforced. I think weak "junction" where 2 top rear beams connect to top front beam of frame on 750 is what had inevitable effect on frame rigidity of older models.