Emax

Hello everyone,

I have recently got hold of an Emax SE (non HD but with a SCSI port) 
which I am very happy with particularly as I have heard that the SCSI 
ones are fairly hard to come across.  

I used to own an SP12 turbo which I am beginning to miss only due to 
its realtime tune or decay manipulation that you could perform with 
the sliders.  I have been messing around with the Emax for a while 
now and the nearest I have been able to come to this functionality is 
using the mod wheel of my controller to manipulate the decay envelope 
and using pitch bend to momentarily change the tuning.

So...what I want to do is replicate the SP12 realtime sliders in the 
Emax whilst triggering the samples over MIDI.  Does anyone know how 
to:

 i) make a permanent (ie not momentary) tuning change to a particular 
voice using a realtime control?
 ii) change the sample end trim point or envelope to shorten or 
lengthen the sample?

It has occured to me that you might be able to use a programmable 
MIDI slider box such as the Peavye PC1600 to send sysex commands but 
I haven't attempted anything like that before.  Has anyone done this 
to good effect?

All suggestions welcome!  Thanks.