After using the USTALL checklist for thirty years, I managed to land a
couple of times without first dumping my water ballast - one of the
landings was interesting as the water had leaked out of one wing
through a leaky valve during flight and the other was still full
(ground loop anyone?). I now use BUSTALL (which is what is likely to
happen if you land with one wing full of water and one empty).

I also disagree about leaving out the undercarriage check on fixed
gear aircraft. When I was training for my single-engine rating years
ago in South Africa, the fixed-gear aircraft had a dummy gear switch
on the panel with a red and green light. My instructor thought that
it was always good practice to check gear and so far his training has
worked on me.

Mike