Picked up a set of Bob Harris' rear leaf springs, here is a side by side comparison to my original 4 leafs.
IMHO the springs are very very nice, only having one set with which to compare leaves normal differences out so I will compare with what I have.
1. The radius's on the rectangle appear to be larger on the originals.
2. The depth of the rectangles appear to be deeper on the originals.
*3. Compared to my originals the Harris Springs appear to be thicker on the tapered end.
*this may be due to the fact my originals were missing the separator pads and had worn on one another.
I know many restorers who have their leaves re-arched, they have been extremely happy with the results, if my springs did not have some of the severe pits I would have gone that route.