Anything I should know about the Sawyer SST (Scadden Power Stroke) 2 pc. oar connections? They use a back-out screw pin connection to attach the two oar pieces. Seems to be a tight and stable fit. I just gently backed out the screw pin into the connection hole, assuming there is not some sort of 'locking' that should be felt. The last thing I want to do is destroy the mechanism, but I also want to be confident in the connection. Any general comments about the oars would also be welcome.