So in a effort to find a slight wider pedal for my road bike to help eliminate my foot pain and expand my q-factor, I bought some Time ATAC Alium. Wow are they a nice wide platform. The platform of the Shimano SPD PD-M520's I was riding is 2"x2", but the Time ATAC Alium platform is 3"x3", just to give you an idea of the platform size. I still need to use my pedal extenders, but I am no longer hanging off the edge of my pedal while riding. No foot pain today and no numbness. They also can be installed using a standard size 15 pedal wrench so makes it easy to use with the pedal extenders.
They are a slight more difficult to engage as you have to enter the pedal in a straight line, but once I get used to it, should be a none issue. The were very easy to unclip from never feared not being able to unclip. If you have a wide foot, mine is a standard wide, not EEEEEEEE or anything like that, this should work great for you if looking to go clipless. At $45 from JensonUSA, I ended up buying 2 pairs, so I could use on both bikes and not have to worry about swapping cleats.
I also bought a pair of the Shimano M122's and they feel nice and had no issues with the Time cleats.
Oh and thanks to Markhr for his detailed PM on the Time pedals. His information really helped me in my decision making process.