Hi Gary
if it's short enough ie carpet short (not the shaggy stuff lol) i cant see a problem
static may be a minor issue but as ian said from mr google you would need to skid the tanks along it to even get any but still a possibility
my tiger usually pulls tufts of grass out and i did get a balling when i drove my M41 across mrs 432's carpet and the shiny new tracks caught on it and pulled a nice thread out

(man was i in trouble

)
that is the only way i can see any issues but if youve got a bad board or its going to blow then it would on grass anyway?
just some thoughts but i cant see a real issue