Here's a bit of an update.
I'm now riding with a pair of 32 primes and Sole Ed Viestur footbeds. Footpain is intense for the first few runs, but after that, it levels out a little. What a relief to finally see some results. However, it seems now as if my knees are now a problem as well. Halfway down the mountain I need to stop for my knees and/or some foot pain.
Any suggestions as to what I can do for the knee pain?