WOT blast = Wide Open Throttle blast.
My knk set readings are pretty much identical: 50-60 to start with, 80-90 after a thrash.
At idle mines the same, between 4 and 10. But when flooring it, 0 all the way to redline? I was only driving for about 30 mins though... I will try it again tomorrow in the heat I guess...
At least I know it's not my crazy switch mod hey...