Al, I'm certain I'm going to disappoint you. The only two tricks that come to mind involve setting each individual root in traction w/ pins and a board of some type and fertilizing near the nebari. Neither give immediate results. I'm certain you're familiar with both ...but I wish I could think of the gentleman from Japan that pioneered the traction/pinning of roots. I'm not sure where I FIRST heard about it, but I know I've read about it @ Jonas' wonderful http://bonsaitonight.com
. I believe Adair's done something similar with a Zelkova that he posted ...probably here.
Super, I'd opt for wide and shallow.