FWIW, I use Briess pils DME and a couple oz steeped crystal for my 1 gallon hop trial APAs. Using most other extracts leaves a higher FG.
My experience with Breiss pils DME is that it is highly fermentable.
I've switched to their golden light in order to maintain more body in my beers.
Yeah, I think I read that their pale extracts are ~ 80% fermentable. It's been pretty reliable for me.