Had some people over Friday night after force carbing the night prior. Over did it and the whole night we were patiently waiting for foamy beers to go down. I wish I had found this thread earlier.
Did it on three kegs using the release valve to remove pressure. Worked like a charm. Absolutely perfect pours now.
Also, don't fear the foam! You ARE going to get some leaking out if you open the valve all the way to release pressure.