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"Tolerance is the virtue of a man without convictions"
G.K. Chesterton
> they might work if you are short enough
Now, putting them on doubles could be interesting if you don't have them
perfectly aligned -- you might just end up going in circles... <grin>
My steel-120s had a similar type of boot on them originally... Each had a
single wheel that was about as wide as the diameter of the tank, but looked
to be of a smaller diameter than the one in the previous link... Being a
smaller diameter, it might not have rolled that well, but I never tried it,
I just removed the boots as soon as the tanks arrived... Hell, having to
carry your own tanks helps prevent taking a DCS hit anyway... If you've just
hiked a mile through the Florida forest carrying a hundred pounds of gear to
get to a spring head, do you really want to do that again just to get
another dive in for the day? <grin> Yeah Lee, I know that you knew the
shortcut there, but us sailors didn't...