I bought a used fiber-wrapped HPA tank. Hyro'd it once and it's still going strong. I just prefer it over CO2 for the consistency and yes, no white puffs. It's not affected by weather and size for size is lighter than CO2 tanks. No issues with any of the fields I've played at because while they will refill your HPA tank, they will only rent you their CO2 tank and will not refill the one you own. I'm very surprised by the availability (or lack of, rather) of HPA across the rest of the country!

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