I’m not sure which causes more damage, neglect or over thinking …
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Another vote for Deep6. The company goes out of the way to make service easy. You will get a service kit with a new purchase. Also, you can learn how to service Deep6 regs by taking one of their courses. The regs are well made and are a good argument against paying $$$ for brand new alternatives from major manufacturers. If you're diving 200x/year, then investment in learning how to service your gear should pay off soon.For starters, you should probably consider a sealed diaphragm design. This keeps water and grit out of your ambient chamber and reduces the potential for damage. My personal favorite is Deep6. Any good reg tech who is qualified to service a sealed diaphragm should be able to service them and Deep6 provides the service kits (their signature series reg comes with a service kit when you buy it). If that seems like a non starter, then maybe look at the one of the sealed diaphragms from SP, or whatever brand your shop services.