ADSM 3.1.2.5x and 3590 Extended Length?

[Richard Sims]

The ADSM 3.1.2.5x server level supports 3590E, double-track drives.
The doc does not say if it supports double-length cartridges (which
I suspect that it does, as that would seem more transparent than
track-switching).
Could an ADSM 3.1.2.5x server customer verify this for me,
as we are thinking of upgrading our 3590 drives within this
current server level, and I'd like to be sure.
  thanks,  Richard Sims, BU