First year using Black Locust extensively.

Fair enough..BL can be rock hard.
Yet this is contributing to your low readings.

 

Funny, I’m usually the one telling people they aren’t using their meter correctly.

 

If you can't get them in more you can't get them in more. Correctly depends on the situation.
Ideal does not. But that's why it remains an ideal...

 

I'm getting really good results with the "petrified" stuff and 3/4 inch maple lumber cutoffs. For an 18 inch split I put 3 sets of 2 cutoffs stacked on a bed of coals and put the split on top. Soon I have lots of flames and heat for hours.

 

I like to have a 'dirty' stove for the hard stuff.

 

This is where I like my pinless moisture meter. It's actually made with better components than the cheap moisture meters that most people use for firewood. But, for firewood, you rarely need anything better than the 20 dollar pin type meter.

 

Yep. Mix it up, there's a few kinds of wood that just do better this way.

 

Agreed.

 

Model?

 

Dr meter.