Down at Plymouth for the weekend on In Deep’s shark-smile boat Seeker. It was the first time in a while I was diving a single + pony setup rather than twinset. (There were various reasons for this which aren’t very relevant here). My single cylinder BC is an oldish but generally very reliable and sturdy Mares vector chrome with integrated weights. As I was diving with a pony, I had pretty much all of my weights on one side, to counter the weight of the pony. Clearly, though, today, I didn’t clip it in properly, or I somehow dislodged it on entry. When descending the shot for our second dive of the day, a gentle bimble at Tinker’s shoal, at about 10m, my weights suddenly descended into the abyss...(okay, about 18m). I couldn’t, however, continue my descent without the weights, unless I pulled myself down the shot line, up current, and therefore away from where the weights were lost. I was diving as part of a three, and I managed to communicate the problem to my two buddies at the base of the shot, and with me just about able to stay down with all gas dumped from everything (I have some lovely squeeze bruises), we tried in vain to search for the weights in poor visibility. Sadly to no avail. I communicated to my buddies they were welcome to continue without me, and mamaged to launch an SMB while clinging on to the reef and made a safe ascent. (I couldn’t hold a 5m stop properly, but for an 8minute dive I doubt it will kill me!) Anyway, the whole situation reminded me why tec divers have shunned ditchable weights and taught me the importance of checking they’re properly secured if using integrated pouches. Replacing the lead and pouch has cost me about £60 which is annoying but hey ho. I hate littering the oceans though, so if you’re in the area, please keep an eye out for a flash of red plastic from the release clasp. There is 6kg of free lead in it for you!!