A trick that works for me (fyi... I also have the hook velcro at the back of the tramp)

I have a mountaineering grade caribiner that I run the main sheet through. The carabiner is then attached to a high quality snap shackle that is attached to my harness. The mainsheet follows me hands free in hectic or crash conditions and also acts as a safety line if I were to get washed overboard...the mainsheet sheets in as I get towed/trolled and the boat capsizes instead of sailing away...if in trouble or hooked up just pull the lanyard on the snap shackle and the caribiner and main are free to go.

That's a little something that I have added as a safety and control feature for distance racing.

Fast and safe sailing,

Jim Stone