Often thought of as the exclusivity of cave divers, Sidemounting has created a real buzz in the diving industry. Suddenly loads of new shiny gear has appeared on the market and courses to use this gear can set you back several hundreds. When diving open water as we do, sidemounting can still offer a lot of advantages.The BSAC Twinset course covers the use of 2 cylinders as main gas in whatever configuration. Backmounted, inverted, manifolded or independents. Sidemounting positions these 2 cylinders either side of the diver, giving great redundancy, increased gas availability and great trim and streamlining. We can host and run Twinset courses in most configs within the branch. Interested? Contact our training officer.