As if he accepts dating techniques....
On the rare occasion where he will accept dating techniques, it will only be when done on artefacts or geological formation that he feels fits his narrative.
Every other dating that contradicts his story, will be rejected at face value with an argument from incredulity.
ie: "My evidence against this, is that I don't believe it"
Sure - I strongly doubt that
@1213 accepts radiometric data or the like. What I was hoping that he'd reflect on a bit - if he sincerely thinks that he's being intellectually honest - is internal consistency within his worldview.
Whatever timeline he's constructed for himself using whatever method, if he's approaching this honestly, he'll recognize that it has to be a
single timeline. He has to fit all the available evidence into a single timeline somehow and whatever he associates with the flood will all need to happen at the same time.
Mixing this in with evidence of even relative order of events (Civilization A supplanted Civilization B, or species X "went extinct in the flood", etc.), I expect that it'll end up as a contradictory mess if he puts a bit of thought into it.