Dan,
I think if you try a real, professional squeegee that you'll retire that sponge. I used to use a sponge too (Kodak, even... remember them?), but find that the squeegee makes a significantly drier surface, especially on the base side of the print.
On the emulsion side, you'll find that, as the squeegee blade drops off of the edge of the paper, a tiny row of water drops ...may... be left behind, as I show on my TechBlog. (Ok, don't throw that sponge away, here's where it's still usefull).
To be fair, it's pretty easy to wrinkle a BIG print if you aren't careful. Just don't rush it, a light first pass lets the water float out from under the print so it will "cling" to the glass. A second pass with a bit more pessure gets the surface liquid down to zero. It doesn't seem to make any difference if I do the base or the emulsion side first.
The ability of a squeegee to remove surgface water is quite remarkable. To illustrate, wet a window with water and use a squeegee. Then draw a damp sponge over the same glass... Maybe my hands are getting arthritic, but I can't physically squeeze enough water out of a sponge to create the same state of dryness that exists under the nip of a squeegee.
What part if the Willamette Valley do you call "home"?
Cheers
Reinhold
www.classicBWphoto.com