Geoff
2003-06-04, 12:58
I've been reading about a device called a tennis computer ERT700, which you can use to give a figure for stringbed stiffness.
Does anyone know who makes them, where you can buy them from and roughly how much they cost?
Cheers
Geoff
Does anyone know who makes them, where you can buy them from and roughly how much they cost?
Cheers
Geoff