I am considering an upgrade from my Riptide Fortrex. I have the RTA-19 removable bracket and wanted to know if the hole pattern matches the hold pattern in the RTA-54, which fits a couple of the motors I'm considering. If not, is the hole pattern of any other removable mount compatible with the holes I already have for the RTA-19? Anywhere I can get dimensions of various hole patterns for mounts?

Thanks!

-G