Can’t say what the ej is capable of but is that auto trickler communication not enough in and of itself?
I certainly wouldnt waste money on a scale that won’t speed up my process. If you’ll o lay ever spend 300 then just get a charge master.
The only one that matters. It's kind of silly to buy any other scale at this time if you are going to invest in a lab type scale. Even if you just want to weigh single charges, you would still want to get a scale that could be used with an AT or some version of it for when you get a good scale