I enjoy Them too, actually i have few of them
now, not SD5s but i mean few Ketrons at once:
SD5, SD2, SX3000, possibly XD9 and of course AUDYA.
This all came into my hand in one single day
and actually was my first time dealing with
Ketron after programming many years for KORG.
They are very nice but i agree and dissagree
on few things with DonM but hey, i am still new here.

Salute