I also have disks brakes,with the Hydrastar actuator. If I was to compare to the drum brakes it is night and day better.
My trailer is a 3 axle,had mine installed at Moride in Elkhart.
Make sure that the power line fron battery is big enough for the
Run to actuator.Brake fluid full.Bleeding system. Ground wire bigger.
I have a 19 Ford factory BC worked great. OEM brakes self adjustable and had 25,000 miles on OEM there was not much left on the shoes.
Now I only have 1800 miles so far but perfect so far.if mine has delay I can knot tell yet.