Use of 256 steps target for linearisation with i1pro2

Piezography Professional Tools
1

There are 2 similar targets available in the Piezography targets file:
Piezography-256step-i1Pro2-test and Piezography-256step-i1Pro2
Which one should be used for “fine tuning” linearisation?
What is the other one for?
Thanks!

2

Not sure why the -test one is there. The non -test one is what you want.

best,
Walker