I installed three of the wobble heads today....had problems at first and it was driving me crazy. The bay I was testing it in had a problem with the solonoid and I couldn't get the
soap to foam properly it had too much air and not enough product. I waisted a ton of time only to figure out it was that particular bay that was giving me a problem. I ended up putting the regular brush back in that bay....the other two seemed great. It was getting late and I will finish testing and calibrating the foam brushes tomorrow.....from what I can tell they foam more than my regular brushes do and I have to adjust for that.
Also the handles are thicker than my standard ones and I had to take a grinder to my foam brush handle holders and remove one of the red rubber wheels for it to fit( I use the ones from KR with the red rubber wheeles)
From what I can tell they seem to work great, but I need to set all of them up and get my air and product set properly. They are made very well and I like the thickness of the handle.
I will post my results in the next few days. I don't want to jump the gun with any comments yet. If all goes well I will order for my other two washes and a few of my friends washes as well.