If the cloth in a radial cut mainsail like that has stretched enough to warrant using the leech line, I would personally consider the sail only fit for cruising afterwards.
All sailcloth detoriate over time, but a radial cut sail should be more stable than a crosscut sail (like the Hobie 16 design). When the time comes to use the leech line on this sail, I guess the profile and draft position will be in the wrong position as well. Something to ask Calvert sails about if you contact them for some endfittings for the battens (I would like to hear their reasoning for installing a leech line on this sail)..


After this discussion, perhaps you could do a photo when hoisted as well. Preferably from behind, and from below upwards. Give it some mainsheet and downhaul before shooting (but get the endfittings for your battens first).

Personally, I prefer the usual tie-system over the velcro or webbing systems. When threaded right, it's so much easier to get the tension you want. Having one line in each hand, while pushing with both thumbs gives a powerful and excact method for tensioning. Threaded right, the tension locks the ends, so you have both hands free to tie the knot.