Maybe after the USB meter, the next thing to get is a thermal camera module?

( FLIR reacted to the SEEK by dropping their prices a fair bit.. lower resolution but generally higher quality. )
yeah but the oven temp meter is pretty good. cost = $0
I have also decided to bump amps to 0.61-0.62 vs 0.6
reason is at 0.6 HW is 2% at 0.61-0.62 HW is under 1%
so my stick seems very happy at freq 175 and 0.61-0.62 amps still is that nice 0.31 watt per gh number.