It certainly is, the only way they (and us) will ever discover what does work and what doesn't is by doing tests like these and seeing what happens. Makes things a bit more interesting for us anyway!
Let's hope they keep the tests going and try a few more different settings so we can compare the results from all of them.
It's still coming in here yet, but I'm starting to get a few more drop outs now than I was earlier.
Cheers for now, Alan.