James:

Have 1.3 (48) and I know you acknowledged this issue above, but I have found a new wrinkle…

When Resistance is on the top screen….

“Zero” does nothing.

When Resistance is on the bottom screen…

“Zero” sets to -7.89.

(IMHO I am getting very confused as to which readings can be put on top and which on bottom. If I had my druthers, I would vote for radio buttons or a simulated selector switch like on a Fluke. But that is me thinkin crazy)

Tom