slab sided mac plug question

[steelhead]

Thanks Bassmaster and Jigman for your comments/offers to help!
I have been envisioning that snakey wiggle that I see when a mackerel swims. That was my thinkng about trying to concentrate weight around the balance point and trying for a neutral bouyancy or a very slow sink, like aslow sinking needle fish. Probably what will happen is that I'll charge up the portable drill, bring some drill bits, weights, hooks and some Marine Goop and head down to a local dock at high tide and have at it... Too bad I can't take some videos... Hmmm...