I spent a little over an hour yesterday very carefully tuning in my 24" dish on 129 and achieved great success. I watched a little over 4 hours of programming on various channels off 129 yesterday afternoon and evening and never experienced a loss of signal.
It was very nice to be able to watch that much uninterrupted HD programming!
Here my current TP ss numbers as I type this:
TP1: 80
TP2: 80
TP4: 90
TP5: 85
TP6: 75
TP7: 81
TP8: 85
TP9: 89
TP10: 89
TP11: 80
TP12: 91
TP13: 92
TP16: 83
TP17: 84
TP18: 77
TP21: 81
TP22: 80
TP23: 84
TP27: 85
TP30: 89
TP31: 96
TP32: 78
I patiently waited until the signal was at the high-end of the wobble cycle so I was getting the highest signal before I began the peaking process. I then carefully adjusted the dish to get the best signal I could during the top of this cycle so that the drop-off at the low end of the cycle would be as small as possible. After getting TP11 to peak-out at 84, I stopped and carefully locked down the dish. I then came in the house and went though the TPs to see what each one was reading. I was very pleasantly surprised to see most in the mid-upper 80s and even some in the 90s!
I waited to see what would happen at the low-end of the cycle...to see what the low-end would be. Turned out to only be an approximate 10-point swing across the board, which which put the lowest TP at 65ish...still well above the lock-loss point! The big test will be when we get some heavy clouds and/or rain and see what the readings are then, but all-in-all, it was a very successful procedure!
As far as my degree setting, well, there-in lies the problem. In order to tilt the dish back, I had to tilt the mast forward about a half inch. So it's sitting at just a hair under 40 degrees now, but with the mast at roughly a half inch from vertical, my best guess is that the dish would probably actually be a hair under 38 degrees. When I started this process, the dish was at 36 degrees and the mast was vertical.
Anyway, it works very well and I feel that the time spent was well worth it.