I am thinking about buying some Carbon Fibre (CF) tanks. Partly because they are much lighter than Steel or Ally's and I sometimes want to drag tanks through dry cave to get to sumps. Lighter is obviously easier to carry.
However this isn't really a big advantage if I will have to carry a lot of extra lead for weighing me. Also, I am not keen to put a lot more weight onto me in principle. I currently dive steel mostly.
I have been trying to find out what changes one has to make to ones personal weighing when diving CF tanks, and I am becoming confused. A spec table I have found has CF tanks with the same buoyancy characteristics as Ally's, but a few comments on forums say that CF tanks are a lot less buoyant than Ally's.
Does anyone have experience of diving these, and how much extra weight do you have to (or not) put on your harness?
However this isn't really a big advantage if I will have to carry a lot of extra lead for weighing me. Also, I am not keen to put a lot more weight onto me in principle. I currently dive steel mostly.
I have been trying to find out what changes one has to make to ones personal weighing when diving CF tanks, and I am becoming confused. A spec table I have found has CF tanks with the same buoyancy characteristics as Ally's, but a few comments on forums say that CF tanks are a lot less buoyant than Ally's.
Does anyone have experience of diving these, and how much extra weight do you have to (or not) put on your harness?