Since I've been mulling over going "Dark" next tire change, I've been asking around about seating the beads. I spoke to one of the techs at a local shop who'll mount a CT for me (if I sign a waiver) and asked what kind of pressure he's seen while seating the tires. Needless to say, I was shocked when he says he gets them to seat @ 40-45 psi with a good lube.
I asked how he was able to do that and told him about the 100+ psi horror stories I've heard about on here.
He said the trick was to remove the valve stem because the stem only allows the air in at a much slower rate. He said by taking the stem out, and hitting it with pressure, the quicker rate of inflation makes it seat easier, quicker, and better.
I've not seen it happen, just passing along the info. Hope it helps.