Another top tip - if you dont want to shell out on expensive ankle wieghts for your drysuit, acquire some heavy duty bicycle inner tube, 1 tube of rubber cement and some fastext rucksack buckles (approx 1.99 for a pair)and some lead shot, cut tubing to size of ankles whilst wearing suit with about 6 inches spare for adjustment, cement 3 inches into the tubing and leave it to set, fill with shot to required wieght and then cement the rest fully (approx 6 inches) Next thread through a fastext buckle (not the pull/adjust side) on the smaller end that you first sealed, cement and apply more binding for strength around it and bond with more cement, next thread the adjustable part of the buckle on to the other end and hey presto .. cheap and effective ankle weights at a fraction of the cost !!!
same time next week to find out how to build your own submarine !!!