Hollis 500se

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Sitting at DEMA wondering if I should buy one of these? Not happy with my shallow reg, an AquaLung Mikron. The Mikron just seems to breath hard at 80+ feet. Can anyone comment on effort of breathing for this reg, especially at deeper recreational limits. I am considering onr for travel.
 
I have one. To me, it breathes the same at 100 feet as it does at 10.

Yep. Same at 130' as 10'.
 
https://www.shearwater.com/products/swift/

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