I've been using the Slavich SW paper for a couple of months now, and enjoy its look and feel. I've got a bunch of 12x18" paper, and find the best way of processing it is in a single tray, pouring the chemicals off in succession into jugs. Works fine. It dries with a bit of a curl, but nothing the dry mount press won't take care of. I think it would really shine dry-mounted, as a matter of fact. I've not done it yet, but plan on it.
It's nice stuff - it really bounces around in selenium, from my limited experimenting. Goes a nice brown / red.
I think if you were to print 5x7, you could safely process it in a line of trays without worrying too much about creasing the paper.
Good luck,