[Mal Bridgeman]

Originally Posted by celeronmanuk

Without the flat washer the spring washer cuts into the aluminium backplate. I'd rather keep the spring washer to keep it nice and tight. I've seen a wing come apart under water!!

The Halcyon wings come with washers don't they? So it's not like it's not standard.

I've done a fair bit of diving like that with no problems but I do check the wing nuts are tight before I start.

My buddy has a Halcyon STA so I'll have a look when I can......

I hope you get a solution you are happy with because as travel STAs, they are brill.
Mal