Hi Dave, I like your trim example, anything that gets the message across is good.
I thought that Lee was expecting the long term trim to return to zero(after clearing F/C) and was confused because it did not do so, maybe I misunderstood his first post.

It was for that reason that I replied in the manner that I did.

I find that Fuel trims, long or short confuse people and thats before you bring multiplicative and additive trims to the party, or LTFT moving the STFT base line and so on.

Maybe we need some sort of information system/training forum?

Regards
Mark carter