*me mysteriously appears in a puff of smoke*
Just got up from a nap.... damn sleepy.
Anyway, glad to hear that's the case... we were aware of the
limitations of castor wheels on rough terrain, but in the end, they
were our best option for tennis use, in light of our limited
budget.
In any case, commercial tennis wheelchairs mainly use castor front
wheels as well. 
Oh well... back to work. 
*me mysteriously disappears in a puff of smoke*
