When I received my X20 in Jan 2017 it came with this D'Addario tag
I've saved all emails I received from Emerald,
and when I asked about the strings being shipped with my X7 & X20
this was the response I received on 11/24/16.
The gauges we put on the X7 are .012, .016, .026, .036, .046, .056
The strings on the X20 used are D'Addario EXP 11.
I don't have the string tag that came with my X7.
I thought it was a D'Addario EXP also,
but the string gauges .012, .016, .026, .036, .046, .056
don't seem to match any EXP string sets.
Maybe Emerald purchase individual gauges in bulk instead of string sets ?