I use one blank column for tail-wheel time, and one for float-plane time. The tail-wheel time is very useful if you ever buy a tail-dragger (or a share in one), because the insurance company will need to know it. Keeping track of float-plane time, for me at least, is far less useful because I doubt I'll ever own one, but it adds a bit of interest to the numbers just the same.
FFF
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