[Aarongriffey]

I have been using a lot of DOT5 the last twenty years.
If you are going to use DOT5 you should NEVER hone a cylinder. Replace it! That stuff will find a place to leak.
I never put D5 in a car unless I replace ALL cylinders.
If the cylinders need to be honed I recommend DOT 3 or 4. I prefer D4 but I have had D5 in my F1 since January 2000 and it is still clean. I intend to flush the system in the next few weeks.
When you hone a cylinder you should run a clean rad through it, squirt in some brake fluid or cutting oil or soluble oil or monkey sweat or what ever, hone for about three second moving the hone back and forth.
If there are pits or other marks in the cylinder you should put it in your scrap metal container. That’s 64 years of brake experience talking.
I’ve seen guys hone cylinders and put new kits in them and while they were bleeding the brakes the fluid was leaking on the brake shoes. I once had an
Opel Record that was honed so much to get the pits out that it leaked fluid out the cylinders while parked!
New brake cylinders for old cars are cheap. Especially for Fords.