Getting lost with OS105HZR Tuning (first N heli)

[Crumpet]

If you do a full throttle climb out, let it clear it's throat and get onto the top needle, if you stop abruptly do you get a big cloud of smoke? If you do and you're more or less happy with the top end then lean the mid a click at a time until you see no real difference in the transition between top, to mid. I'm sure Dave covers it in his video but tune the top needle first and then back to the mid and vice versa, once in the zone for the fuel and pipe combination they need very little messing with and a click here or there on the top is often all that's needed. When was the last time the bearings were done?

The high and mid look about equal at the moment, I just wasnt sure whether once its set I can half forget about the mid.

Its a used engine, so no idea but they look fine. Slight red discolouration around the edges but it looks more stained from fuel than any corrosion and they are silky smooth