You can get a u-lock strap on the PAC Ultimate. I can get the lock out or put it back in without sliding the bag around to the front and both my full size and mini u's fit just fine.
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Reason is a scoundrel, stupidity is direct and honest. –Ivan Fyodorovich Karamazov
Man's mind, once stretched by a new idea, never regains its original dimensions. –Oliver Wendell Holmes