Just a bump to this thread, replaced thin prusiks with these line locs on my 1.75mm zing-it guy line. Over time I became less fond of the prusik approach, esp when I needed to make a massive change in length of the line (friction = heat), and after rain they were especially annoying.
Anyway, line locs weight less than a gram, so there's basically no weight penalty for the more convenient setup. At least not enough to be concerned about (and rounding to the nearest gram has always been enough for me). Total weight for 1 line (3/32, line loc, 6' zing it w/ loop) is 5g.
It is a very alert, active sheep, with a stylish, lively carriage.
I tour & bike camp with a Mark Nobilette built Protovelo, and ride a bunch of others. Have any bike questions?
Camping pics on Flickr