Having excellent results with the Stonehenge bright white. No pre-treating, with one drop of 20% Na2 in an 8x10 produces the best result so far. Digital negs are taking 600-650 units on the 26-1k. It's a great paper, coats very evenly and smoothly, is fairly heavy, so it doesn't wrinkle and has great wet strength. Definitely going to be added to our catalog.