Tony,
I think James has stated the possibilities. Personally, I'd rather have the probe opening in the middle section of the smoker. It is somewhat inconvenient to have the probes run through the lid when you have to remove the lid. Not impossible, but I couldn't find an easy way to do it.
I use the bbq wsm eyelets, but the wire on your probe is too thick to get through those eyelets. My Weber digital works fine and the probes for my digi automatic temperature control work fine, but the Maverick ET-732 is too thick.