socks
You can do it, but remember that the control lines stay with the sock. If you lengthened the control lines, you COULD run them both aft by using a pair of snatch blocks, probably mounted one in front of the other at the forward end of the outboard track, then to a cleat in the cockpit.
If you really wanted to get fancy, you might try cutting the line in the middle, and attaching a shackle or brummel hook at each end, and have the 2 lines which run aft permanently installed-also with brummel hooks at each end. When you hoist the sock (keep the control lines hooked together when not in use and when raising/lowering), separate the control line halves and attach them to the permanent lines, and you will have a continuous loop.
The issues will be seeing if you can do this and either keep the brummel hooks FORWARD of the snatch blocks (careful measuring here-maybe not feasible) OR, use snatch blocks big enough (and control lines small enough) that the hooks can pass through them.
I just thought of this and have not thoroughly thought it through, but it might work...
Let me know,
S