Could use some help with this. Went on a short 50 miles drive and started to smell brake pads! I found myself having to push the gas pedal more to get moving until I figured out by braked are starting to lock up. They were hot to the touch and smoking! They released after sitting there for about 40 min and I drove her home. Problem is it doesn't do that all the time. This was the 2nd time it did this. I checked all the obvious like booster piston length=check, brake fluid 1/2 under full=check, calipers clean and lubed, incl. installed new hardware. Could it be in the Master of one of the prop valves that's causing this? any help would be appreciated.