Looking to purchase a new lock, as I just got a new bike. Does anyone have any idea if the NY Fahgettaboudit 1410 chain (Kryptonite rating = 12) is really better than the NY Evolution 1210 chain (Kryptonite rating = 10). I would assume that the NYFU weighs a little more, but every website seems to show a slightly different weight. Also, looks like the NYFU has a slightly bigger opening in the lock portion, which may allow easier access for tools, but a thicker shackle and links. What do you think? Are the chains at good as the u-locks if you have to pick one or another? Worth the extra $$$ and weight? I'll prob use either in conjunction w/ one of the mini u locks if I'm leaving it locked for a while anyway...