When creating MSPs, a good trick is to put a number before the name (e.g 1-Synth.msp, 2-PadTrain.msp ... etc). This way, the order in which the samples are loaded is FIXED - and you can always add more later, ensuring these new ones are added below the older ones. This and a lot more is better explained in the 3hrs+ DVD manual we just released which takes you from turning on/off your AUDYA to Sampling, Sequencing (yes, you can), Style creation and Morphing (yes you can) ... etc. We've got snippets of this on Youtube (search for AJAMSONIC).
Designing a machine to work one way instead of another doesn't neccessary mean it's a design flaw. Ofcourse there will always be better ways to do things but usually, there is a reason for a design being one way in the first place ... usually!
Thanks
AJ