I'd judge which side after I opened the unit up. Interesting 1/4" I was thinking something with a plate which is why I was so wary of drilling the front. The smaller size also has an option to have one with a switch built in like the bottlehead S.E.X.
I've got a couple of these hefty Switchcraft jacks that I was thinking would be good for a project like this...
Then again, maybe a 1/4" jack is a bad idea since you might short the terminals together and that's bad mojo.
Edited by Armaegis - 7/8/13 at 4:44pm