Ok, so I've got an issue with the new car. Brake drag. Hand brake not so much but main brakes are dragging bad. It's got Strange calipers and rotors. My old car had Mark Williams and never had this issue. Has anybody had issues with Strange brakes dragging? I'm thinking of switching back to Mark Williams or TBM calipers, as they will work with my current rotors and mounting brackets. Thoughts? I've checked everything and the only thing I can find is it's a caliper issue.

System holding any pressure? Residual check valves?

Known issue we have all had with Strange brakes when the pads get over half worn out. Pistons extends further and get crocked in the bore some.

My dragster had Strange brakes and they dragged bad. Switched to MW with TBM pads and never really had any problems after that other than a caliper with a stuck piston after a couple of years. If you want really good low drag brakes, spend a few extra bucks and get a complete TBM set up.
Scott here can hook you up, he is a dealer

Go TBM

Make sure its not the rotors. On my dragster the strange rotors will bell over after a couple seasons and they need to be changed out

Rotors are flat. Brakes are essentially new with the exception of the calipers connected to the hand brake lever. There isn't any preload on the master of either the hand brake or brake pedal, and the right side primary caliper has a ton of drag, left side primary not as much but still quite a bit, and the secondary calipers have minimal but that's because there's still air in the system. I didn't have this issue with my Mark Williams brakes on my old car, so it's got to be the calipers themselves

You can buy a low drag kit seal for the strange.

These are Strange. Low drag o'rings, REM Micro Blue bearings, DRP spacers and LW grease. As good as anything out there!

https://www.youtube.com/watch?v=CVBeH0O9eKg