Thank you all for your particular use and preferences. I will slow down to around 45 and downshift slowly before engaging the Exhaust Brake switch. I am hoping I don't get that transmission slam I got at 50 mph. My service brakes were adjusted when I had it greased. I put new tires all around at a different shop 2 hours later. The tire guy said he could not even turn my wheels because they had them adjusted so tight. I went back with new tires and a brake guy climbed under the back of the coach and had another guy push the brake pedal and leave a small puddle when I left. I have to stand on them to get it to stop now. I don't think I could lock up the brakes if I tried. Aren't Air Brakes suppose to work fairly easy and similar compared to regular brakes. Where is a chain of BRAKE SHOPS that do a SAFE JOB?