I don't drink, but something does effect my memory...
I remember the link for magnets. I just wondered if there was an adjustable switch with magnets.. I was thinking turtleship after playing with one earlier, but only thing it's missing for me is a lock ring.
I was about to test several different batteries, so wanted to get an adjustable switch to work with out rattling.. and adjustable switch also entails no spring for common contact.
I don't have money for a 4nine at the moment, much less to pay to wait on it.. but I figured that might be the best bet. I don't see it going off in pocket as easily as many options... it wouldn't see a pocket for at least 2 months if I bought one, but it would eventually find its way there.