Need some more info. Why would you want the blades to keep spinning with the unit shut off. Most auto brake systems are there for safety. One can trick almost anything if necessary, otherwise bypass safety features.
I'm mowing a very uneven surface (roots, dips, etc.) and if the mower bounces, it often cuts off..a real pain in the a_ _! Would also like to be able to raise the mower a bit to cut some banks.
JD 4520, Toolcat 5610, Bobcat S300, Case-IH 125 Pro, Case-IH 245, IH 1086, IH 806
On my 2 year old 90" (newer style), it was real easy to bypass. Removed a small wheel under the mover cover that engages the bypass. Took only a couple of minutes to remove. Not sure if the 72" is the same.