I'm persevering and possibly adapting a little. Things I've learned:
Urban areas are the worst for dazzle, around here anyway, we have such crap roads that the cars bounce up and down and dazzle me on my trike even when dipped. Throwing myself forward to get some height and looking down seems the best strategy when I'm under siege.
Some bike lights are over powered too and most don't dip - it's rather charming to be blinded by another cyclist.
Blinking and peaked hats are helpful but nothing is a panacea, I use all methods for now.
My USE Toro is fantastic for seeing on unlit country roads. I can get motorists to dip easily when on full and I return the compliment. They seem to appreciate it if I turn down the wick too - those pesky cyclist with their silly overpowered lights etc.
The rain and mist make the dazzle go away....
Clear lens glasses seem to help a fraction.
Swearing at the worst culprits is cathartic.
I'm thinking of getting some scotchbrite reflective stitched to my first and middle fingers of my right hand gloves....
Using my hand to shield my right eye is quite effective when I'm capless.
I rode home yesterday and it was proper dark all the way, hard rain when I set off, slaloming down a a car-less Miller's Dale guided by the Cat's Eyes was blissful. I think I get night riding now.