Cool thread! HJ, if you're spearing, you'd do well do heed Robbert's advice (figure 8 spread high & wide on the mask strap). The bad vibes should stop (and stop scaring fish). Slipping under the weight belt works well, but I had to buy a few snorkels before I just left it on the mask.

(I dive in thick kelp - oh, and I'm not that great...)
Going hand held seems to be the way to go for the depth oriented. (IMHO) In the hand / belt is more streamlined than on the head.
Last thing: Spaghetti - stuffing the snorkel down my pants only seemed to impress the eels!
