Last year I was having issues with the HP4 late in the year at T-Hill. I went and dutifully stood in line. There was only 1 person in front of me. 10 minutes later, I was still waiting but after listening, I thought I had heard enough to point me in the right direction. I added a couple turns of preload and it helped enough that I paid him his 1 time adjustment rate the next time I saw him even though he didn't actually work on my bike.
Too much of anything is bad,
but too much good whiskey is barely enough.
~ Mark Twain