"hair jig angling pressure is the least of my concerns"
Well, if you outfish someone watching, they will notice...
Nowadays, locally, I never, ever catch in front of witnesses. If my intended spots have others around, I will move on till out of eyesight. Without exception, every time I caught with someone watching, the next time I returned to that spot it was barren. If they came up to chat, I would gladly share my method or even give them a jig, but mostly they pretend not to notice and return with throw or gill nets.