I've got older Sidis G-5's with the deeply recessed plastic sole that have speedplay cleats mounted. I haven't used them in years, but back when I did, I had no forefoot pain problem. I suggest to those having this problem, insoles with better arch support. You need the arch area to take some of the load. Heat formable insoles might be a better choice.

http://www.yoursole.com/products/footbeds/slim/sport/