I fully concur with Don here. The overall Ketron reputation is a feeble one and that is putting it mildly. When the SD7 came out I gave it a trial run and concluded that it was not for me, though in itself its potential was good. Several folks here were spurred on by the heat of the moment to purchase the SD7 and to the best of my knowledge only Deane has still got his one and is very satisfied with it. ( also in view of the audiences that he performs to).
What I fail to understand in the entire discussion on the SD40 module is the fact that there is nothing new under the sun as it is basically the SD7 in a box. And as far as trustworthiness is concerned ( and bugs of course) only time will tell.
Incidentally, I have had an old SD1plus arranger keyboard now for a couple of months and , touch wood, it is still running.... smile

regards
John