on the weight issue grab some extra weight and use it. I know when I am teaching students I am so over weighted but my bladder will lift a house. there is always that one student who is never weighted right...... they need to make like a fin weight clip just liek a pound or so i know they make ankle weights but i have never been a fan on them. All my students are 110% in control of there buoyancy when they get their c-card. You know how strict I am about saftey and that is one on the top of my list... If your doing a dive with no line teathered to stop you in a water colum you have to rely on your buoyancy control. But You will figure it out you are great in the water. But the solo diving is not so bright do a search for pasco diver dead. And he was a great diver too.
