Do you guys have cruise control on the CK20,?, I use that the few times I have needed to use the steering brakes on my Kubota. It works ok, but you cannot use steering brakes in reverse, only going forward. Never heard of the "should not use with HST" thing. Kubota reccomends using the cruise to hold the "go" pedal while you use your right foot to steer.. some of the flat deck machines make it easier to use your left foot to press the brakes and still have your right foot on the hydro pedal..This is know as the "kubota shuffle". I noticed that the DK40se had the brakes on the left (and no clutch)
James K0UA