was thinking about this the other night.
One of my other concerns seeing the mag version was if walking in public, that "unwanted fingers" could open it if it got behind your back or at your side in a crowd, and there would be no sounds like the snaps make (plus the force required to open them and having to hold the bottom part while you pull the top snap off).

So it sounds like Dougs suggestion of getting two snaps put in might be the best and easiest for having an additional more secure closure system for the times that you are walking amongst people. You could easily leave them unsnapped when riding, which then would give you the advantage of the one handed opening so that is so nice to grab a camera when riding.

I guess you'll have to really evaluate how much room there is in certain areas for putting in snaps, but I would hope that there would be real estate for this idea--**if near the corners-between the magnets and the corners, they shouldnt interfere with the little loops there for putting on the newer version of their map window (which I still find to be the best map case Ive seen, large and really does stay waterproof, I still like using paper maps).