[CAUT] performance piano caster selection

[John Minor]

Our director is unhappy with the look of the traditional grand "truck" 
dollie on one of our 7' performance grands. The preferred look is the 3 
1/2" $300 each brass casters which require the purchase of a shorter leg 
at a cost of $1,355.

  I'm curious what other institutions use instead of the traditional 
grand truck dollie. Pianotek carries a heavy duty Darnell concert grand 
caster, but I'm concerned about how these will hold up with frequent 
moving on a stage. They also carry some nice looking wider brass 
casters, but I'm concerned about raising the height of the keyboard.

Thanks for any input.

John Minor
University of Illinois