I'm printing 7x17 VDB's today, and am trying to do some double coating as Sandy King has suggested. I am using 6ml of VDB solution for the first coating, which might be 1-ish ml too much. His suggestion was 6ml for a 12x20. The 6ml are going on very nice and even for the first coat. The second coat is where the problems begin. The paper is warping pretty badly (Somerset hot press), and when I go to do the second coat, I am getting run marks and even some puddling going on. I am considering using 4ml or so for the second coating to see if I can eliminate the puddling on the second coat. I am letting the first coat air dry for 5-10 minutes, then force-drying it if it's not completely dry for the second coat. Any suggestions? EDIT: The double-coating produces a very rich deep DMax which is quite pleasing, so I am pretty commited to figuring this out. It seems to be worth it on my early tests.