The fact is that LaRue has ignored the Canadian market while ADM has stepped up to the plate. As for which mount is better time will tell, but for now I'll go with the one that is available and willing to work with us Canadian customers.
Bingo! It boils down to LaRue simply not being bothered with the Canadian market. No matter how they try package it that's what it boils down to. They have great stuff but they're not the end all or be all.