Posted 5/22/2019 22:52 (#7514341 - in reply to #7514284) Subject: RE: JD 635 Hydra flex ?
Zabcikville, TX
In my experience, at least 2500 is needed to make it rigid. 2750-3000 WILL make it rigid. My experience (limited) is on a 630F. But should be pretty close to the same.