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In theory the Hollis SMS 75 is a universal system. Though I've never seen anyone do anything other then sidemount in it, it is set up to take a single tank backmount anyhow.just one universal Sidemount/Backmount system I know - Dive Rite Nomad XT System
any conversions of BCD to the sidemount is BAD idea.
conversions of normal wing (like OMS) is possible, and you can get very nice config, but it takes long time to convert it back to the backmount.
слепить СМ из того что есть: Scuba Diving: Подводный форум больных дайвингом.
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My instructor used Nomad for both applications, side and back mount. I try it too. And here I can tell "I know"In theory the Hollis SMS 75 is a universal system. Though I've never seen anyone do anything other then sidemount in it, it is set up to take a single tank backmount anyhow.
And a decent source for sidemount options is here: A List of Modern Sidemount Diving Systems
My usual dive buddy, before he went sidemount, used his SMS 75 for backmount; he was quite pleased with it. Similarly, when circumstances forced me to dive BM instead of SM, I used my SMS 75 and had excellent results.In theory the Hollis SMS 75 is a universal system. Though I've never seen anyone do anything other then sidemount in it, it is set up to take a single tank backmount anyhow.