I use my pony at least once a month to practice ascent with it or handing it over to a buddy to use for practice.
I frequently dive with deco bottles so am familiar using them, it is certainly good practice to be familiar with your gear so that charging the system prior to the dive and turning the valve off until it is needed is second nature.
I frequently dive with deco bottles so am familiar using them, it is certainly good practice to be familiar with your gear so that charging the system prior to the dive and turning the valve off until it is needed is second nature.