I've always presumed that real aviators can fly their aircraft and listen to the radio at the same time. If a "check gear" call rattles a pilot so that he loses control of the glider, there's a problem afoot much more serious than radio procedures.

I agree! If I was going to land gear up would be nice to have a radio call from someone who noticed, I can certainly fly and listen to the radio. Hell, I even had tower tell me I was on fire right after I got in the air, no reason to crash. Once I did almost land gear up was flaring when I heard a call "gear" lowered the gear just in time, was low enough I scrapped the forward corner of both gear doors. Fly the aircraft and deal with the issue, no reason to have a moratorium on alerting a pilot on final. If the pilot does not have the skills to fly and solve a problem he should just fly then and maybe take up tennis.

On a related point, checklists. Whether I am flying the Grob (fixed gear) or the Nimbus, I use the same checklist before every landing. Used a check list in the Turbo prop too.