“Double your pleasure, double your fun” used to be the Doublemint gum slogan because of its double strength mint flavoring. You can double the utility of your main sheet by upgrading it to double ends. What you already have, a working end at the fiddle block that attaches to the traveler stays as it is and you can continue to use it from the rear of the cockpit. But instead of the opposite end of the sheet terminating at a becket at the boom block, it continues forward along the boom to a swivel block with a cam cleat over the front of the cockpit. This allows you or another crew member to also trim the main sheet from a forward seating position.