Quote Originally Posted by Ian Grant View Post
It's a rimset Compur you can adjust the speeds after cocking, the exception is the Compur Rapid with the extra spring for the high speed you can't move up or down from the top setting while the shutter's cocked.

Thank you, Ian. Very good to know!

My Karat 36 has the Compur Rapid and I'm familiar with the folly of going to/from 1/500 once the shutter is tensioned.