Well, a load of 100kg (one DIN standard farang) can hang on the far end without massive deflection, it does of course move, steel is an elastic material (I've not measured the actual deflection mind).
But I'm always open to suggested improvements.
What do you suggest??
EDIT You may wish to look at some of the commercial offerings, many of which I would consider woefully inadequate from looking at photos, but they seem to do the job just fine.