[werk_ag]

I understand what you mean, however if you consider that, per example, a transition from 0 to 4, it's an abrupt transition, perhaps this is not the equipment you need, nor even the SP-110.
In the real world a transaction like this will happen in just a few minutes (depending on latitude an longitude, and the month of the year), perhaps less than 5 to 6 minutes). Considering the cost, compared to the alternatives, I think that its an acceptable compromise.

As a side note I'm negotiating with the guy from where you bought your SP-110, to bought one, or even more units. He seems a nice person.