My rear brake pedal was mush and had to be pumped several times for the pedal to get hard and effectively operate the brakes. This most certainly sounded like a typical need to bleed the brakes to expel air from the system.
I took my GW to my independent mechanic who was a Honda Red Tech for years before opening his own garage. He agreed that a good bleeding was needed. He bleed the brakes and bleed the brakes and the pedal got no better. A thorough brake system inspection revealed no leaks or other problems.
I placed a call to Will at CSC to discuss my problem. Will was very helpful and as soon as I described the problem he said "stop go no further." I thought OK he sounds really sure he knows the fix to my problem. Will then explained that CSC had a number of brake calipers which were assembled with old grease. When left unused it causes the pistons to become stuck or sticky in the caliper bores. He said to remove the pads from the calipers and pump the brake pedal until the pistons traveled out of their bores and touched the rotors. I passed this on to my tech and we both had a good chuckle.
About an hour later I got a text from my tech who said "I've learned something today!" The strange fix Will passed along worked and worked well. Bottom line I now have great rears brakes. I must confess that Randy aka Papa Zook told me so! Please don't tell him I admitted he was right and I was less right. I thought this might someone else with a similar brake issue.
Bill