Jarraa, when I first installed 10.5, I didn't pay too much attention to AS, just leave it around the middle way. Later on, I used HiFi&RR test record (the torture track) to test the AS, to my surprise, applying max AS resulted in the push of arm to the spindle fast. Also noticable is whenever I drop the arm to the record, it skipped a bit quite often.
I wrote to TW about this AS issue I encountered. 2 Months without answer. After installation of 2nd arm Graham Phantom II (upgrade from I, waiting upgrade to Supreme), I resend my email to TW. Thomas replied. Asked me to do a simple test. Apparently either the magnet in the AS screw or magnet inside the bearing house was installed wrong, reversed. So Thomas sent me another AS screw with a new magnet. I super glued it myself to its correct position. All the problems solved easily.
So I still have the 'bad' AS screw with me. When I have a chance I will let it touch another TW 10.5 AS screw to see how it goes. Then I will know whether the screw is reversed or the magnet inside bearing house is reversed.