S-TEC 3100 & Aspen

The current setup, in a TR182, is an IFD540 linked to an Aspen 1000 Pro with GPSS and an S-TEC 30 with altitude hold and electric trim.  So all of the components seemed to be in place for a straightforward upgrade to the 3100 using the existing servos at a consistently-quoted installed cost of about $15,000.

However, I recently came upon this very useful guide that makes it very clear that the currently-available Aspen software does not support all of the functionality of the 3100, and requires additional hardware to even accomplish what is currently available:  http://www.chiefaircraft.com/pdf/S-TEC-3100-TechSpec.pdf.  The limitations of the current Aspen software and additional hardware requirements are explained and shown beginning at page 19.  And, the improved capabilities and significantly simplified hardware setup once the new software version is available are explained and shown beginning at page 22.

And, of course, Aspen always extracts an unlock fee so that would have to be factored in, as well.

So, I have concluded that now is not the time for me to undertake this upgrade but will be content to watch for the long-promised Aspen software update.

Ironically, it appears that the Avidyne DFC90 AP would provide all of the functionality of a 3100 now with an STC and upgade path specifically available for my airplane as presently configured.  But with the DFC90 seeming to be in limbo as to future upgrades, I'm leary of going down that path.

EDIT:  Just learned that the TR182 is NOT on the DFC90 STC so no possibility of going that route.