Well if you want opinions, you won't be short of any here. Lets say you get to opinions here, go with the majority. You find several answers from pluto somewhere but a few will be similar which is what you go with and what makes sense.
*You will find that here and your airfield people make things alot harder on themselves than they have too. You can also go by the manuals.
* As far as breaking in an ABC. I just take it to the field, run it up and tune it in. On the average it takes a tank or two to get it dialed in. Then i run it a tad rich and thats it. Go fly it. I break in a ringed almost the same but i fly it noticably rich for a few tanks.
Your going to find a thousand ways of doing it but whatever.
* In the winter time here it get cold but no snow. I run it up, tune it in. Then refuel real quick and tune it in again because it is cold, then when the engine warms up, things tend to expand like O-rings and such.