Hello Robert, and APUG,
I am using the older Kodak Readyload holder with E100VS, and it works great. The one with the black pressure plate, and the word Kodak in red on the front is the old one to get. This was made in the transition from double sheet Readyloads to single sheet Readyloads. It works fine with the newer single sheet packets. While the construction is simpler and lighter than the newest holder, the old one does not suffer any warpage. As a side benefit, these are fairly low priced on the used market . . . well, at least until this thread on APUG and a similar thread on LF Forum become more common knowledge.
Ciao!
Gordon Moat
A G Studio
Dead Link Removed