Ed, I think you might have got a bad pressure sensor in one of your toe brakes. I also have the Simped F16/Gameport threw my Cougar and I have Left and Right toe brake functionality in Foxy.
To the OP, I can highly reccomend the Simped pedals. I have had mine for 7+years and they are still as razor sharp as the day I bought them..the design is great. The pedals are wide set, which I think you will like.