Yes Brian,
Yes, I put the Spike and the Smoke in a turkey last year so the probes were very close to each other in the bird. They both were within a few degrees of each other throughout the cook and even the ambient temps were very close despite the Spike being at the top of the bird and the smoke probe being down at grate level. I am confident in them both being quite accurate.
I called ThermoPro just now about my base unit not connecting to my probe. They just asked if I tried pressing the "S" button, which I had and told her the same. She just asked for my order number and address and said she is sending out a new unit and I should get it in 3-5 business days. Funny thing is, I had looked and the warranty had ended on it in January.