Just giving an update.

I reattached the NGS sensor at the T5 about a week ago.

Still starting fine.

There have been 2 or 3 times that it made some "ticking/clicking" sound again since then, but it always started quickly even with the sounds.

The clutch pedal (CSS) safety is still bypassed, so I have been trying different combinations of things when I start each time. Some times in neutral without pressing the clutch pedal, some times in neutral with pressing clutch pedal, some times in 1st and pressing clutch pedal, some times in reverse and pressing clutch pedal, etc. While it is starting fine/quickly in all those combinations, it seems the times where the clicking/ticking sound is more common is when I press in the clutch pedal.