[bestgenman]

You might try this method of leveling rather than altering your brakes.  I found this by trial and error but it works.  There is one facet that is unusual as i will explain later.  I believe this works on most HWH computerized leveling systems.

With ignition on , brake set, activate auto by pressing twice.  Now the unusual part, block a wheel with a good chock, not something that can be rolled over easily and test prior to leveling.  Turn the key to accessory and release the brake all the while in auto level and leveling will occur without brakes being locked.  When leveling is complete, set ebrake.

I've posted this procedure in the past and everyone has reported it working however there may be certain applications where it doesn't work.  Try it out.