Just got mine - oh joy!!
Johnno, as I expect you'll find, not only is the sampling technique now easier, it appears to be a much faster turnaround now than last time.
I had my results within about 5 days of posting the sample off.
All appears to be currently well within the inner mysterious workings of my chutney bunker, though my wife may occasionally dispute that...
One thing I noticed in the small print was that these automatic biennial tests finish when you are 75, after that it seems you then have to request them yourself.