For you, just the usual caution (double-clamped, keep them closed, etc).
For me? Mine are 42 year-old gate valves, mounted on soggy wooden doughnuts. One is siezed open, and the other is siezed shut. They are fragile, to say the least. That's why I keep 'em warm so that water doesn't freeze inside the bodies and blow the valve hat off, or split the thru-hull body.
It is my intention to haul out in the spring and replace them. Thank God I only have 2 instead of 22.