thanks man for all the info. no issue utilizing the dremel to allow cable release functionality!
I did a quick search for B53 plate which doesnt look to be a current production itemt and must have been replaced with the MC-L plate. love to put one of them to use, what would it cost me?
MP/M3 - 50 Lux-ASPH/35 Cron-ASPH
IIIf - 50 Summitar/35 Summaron
Mamyia 7ii - 43 and 80