Yes, I contacted Art, and he said his supply of Elgin impellers “dried up”,
and he suggest that there was a “swap”, which I now have the details of,
and hoping my impellers show up soon.
The Merc impeller swap appears that it was going to work
when I did a test in a bucking of water spinning the driveshaft
with a drill, but the real test will be after I get my test barrel
set up for the season.