Hondata

Am I missing something here?
My understanding of LTFT was that it's based off a sampling of STFT over time, this datalog doesn't reflect that at all.

I've seen this behavior as well - there can be a positive short term trim and the long term trim will still go up, but then you should find that the long term trim will start to go down eventually. I think the long term trim may be averaged over long period; you'd have to ask Honda.