| These calculations are obviously all correct but you need to add the weight of a pillar valve and reg to the cylinder as well. In my experience [note i've done no calculations for this] a steel 7 is then negative from begining to end and an ally 7 is negative at the begining but neutral when empty. This hopefully meens with the ally you can dive correctly weighted only slightly heavy when the cylinder is full as opposed to being over weight all the time with a steel. In my experience you should be correctly weighted without stage so with a full steel you will quite over weighted at the begining but with an ally only slightly.
Hope this makes sense.
Must be right, someone else got my 10pence worth in in the time it took me to type this. |