Adjusting shroud tension

Ha welcome to 1955.

Adjusting those stupid thingummies in a Vision? If there is grass growing nearby you could watch, or paint drying far better use for your time.

Wait til you drop the little circlip into the gravel of the boat park, that's just extra special fun, just one of the delights of this archaic sport, you'd think by now they'd have invented something simple that works... they haven't.

You could try something called fast pins, you'll think oh that looks a bit better, then you'll find they won't fit, because those thingummies that all look the same? They're not, there are micrometer size differences, depending on wether Ron & Stan made them or Har & Ken.

Thingummies are the very pits of hell, best advice? If they're together, leave them that way and don't mess with them, one bad tack would negate any gain you might have made by fiddling with them, not to mention the vexation to the spirit and charisma draining action of trying to line up the loop with the pin and hole, if you do try and manage without torching the entire boat, you'll be a better man than I..