I had not done this for several years,,, and it takes less than 24 hours per bike,,, or at least over night. So 2 nights ago,,, I bungee'd the front brake lever on one of my bikes,,, so that it was holding hard and constant pressure. Every 4-6 hours,,, I would take a screwdriver handle,,, and use it to tap the upper banjo fittings bolt head (right at the master cylinder),,, for about 5-10 seconds. The next day,,, one final tap,,, and remove the bungee,, and go riding. It's amazing how it firms up the lever, by allowing compressed micro bubbles to coelless,, and rise into the reservoir. The next day,,, I did the other bike,, and got the same improvement. Need to do this more regularly,, like a couple of times per season. I also have a setup by which I can hang my car battery charger (6 or 7lbs),,, off the brake pedal. Need to do that as well,,, like maybe next weekend. cheers,, CAt'