Everyday this forum slips further from God.
Using a machine covered in slurry from cleaning hard floors to clean a carpet doesnt look too good. You also have the problem of wheels being damaged by stripper etc on hard floor jobs that then leave marks on carpets.The larger the diameter of machine the easier it is to control as it becomes less responsive to your inputs (assuming speed/rpm is same).
I assume most would clean their machine after a job anyway, or am I wrong?