OK. I think I've figured out why I'm not getting any head.
Yeah, well that TOO...but we're talking about beer here.
We've been washing our dishes in ion exchange softened well water. TDS about 380. Mostly salt and a little citric acid. That's not enough to taste salty, but it's there. I think that the salt residue on the glassware is killing the head. If I wash and rinse in tap water and let dry then rinse with RO water from the vending machine (TDS 16) and drain dry, BINGO, great head on the pour and super lacing.