Well, I ended up with some honeydoos this morning, so it was an early afternoon deal after all. I actually maged to remove my weghtbelt completely & still get negative @ 2' with 400lbs left. Staying at a given depth while not moving was a definite challenge, but I was getting better with all the practice I was getting. Man, the flow coming from the various boils was ripping! I don't think I've ever seen it like this. Sticking my face in front of the main vent was an exhilerating experience. If you ever try that, make sure you cover the front of your reg with your hand, because the current has enough strength to push your purge button. Also, when you're done, don't try to swim over top of the vent. I garuntee that you will experience a sudden, unplanned ascent.
First dive was for 22 minutes. Second dive was for 1 hour 15 minutes. On the second dive, somone picked up my weightbelt that I had laying in 6 feet of water on the backside of the boil. I had set it there in case I needed it when my tank got low. I have another one, & plenty of extra weights, but still.
BTW, it's not that I am diving with no weight, rather that all 7lbs that I do have come from the backplate & single tank adaptor.