I'll try to get better pictures if you need them but here are the D and E sheets.
D sheet
91 Topps D sheet.jpg
E sheet
91 Topps E sheet.jpg
On the change over from wax to the 15 count heat sealed cello I don't think it was a direct change. I opened dozens of boxes of 91 Topps that included all of the different packaging and judging by the variations there was a period when they were being packed in both the 15 count wax and 15 count cello at the same time.
I think they started using the 15 count cello fairly early the only variation(s) that are only found in the wax packs are the scarce A*B* sheet codes.
img585.jpg