He returns John's gesture, then moves that hand to open up his own strap as well. After he gets the scan keyed in, he glares at John again. "Fantastic. Rift energy's probably distorting the results." John may well have thought to make use of that on purpose, make it harder to tell what's going on. "Scan thinks she's got centuries accumulated, but not aged, and from this reality-- but oh, our Tosh died in my arms."