Help with trim

[Kirk]

I agree the weight sounds right.

As for the trim, it sounds like it is all about center of gravity.  If you’re diving a single tank you can drop the cam band or bands to raise the tank a bit.  If that doesn’t work, you could always add some weight closer to the tank neck.  I don’t know if they still sell them, but Zeagle used to have trim weight pouches.  They fit on a cam band in which you could drop hard or soft weights into them.  Add a couple of them to your upper cam band, and synch it up.  If you are using really heavy fins, you can also purchase a pair of lighter fins to help with trim.  Another option, which I use when diving sidemount, is to thread a couple pounds of hard weights on each side of my harness above the chest D-rings. 

When you dive double tanks, the problem is usually the opposite.  Too head heavy, thus dropping the knees to compensate for the off center of gravity.  In that case the best thing to do is to raise the bands as high as possible (thus dropping the tanks), and add a tail weight (and/or wear really heavy fins). - Kirk