One of my favorite things about Garritan Libraries is that they are not over intimidating to someone who is not pro-audio minded.  The simple interface makes it very efficient on any hardware/OS; however, people who are familiar with sfz opcodes realize that the depth of these instruments are actually amazing and easily rival some of the stuff built in Kontakt/HALion/Etc...with nearly limitless options for forging great sounds with tons of good quality sample content.

Something I'd love to see come about for Garritan Libraries is a way for users to add our own custom sfz files to the 'bank' listing.  Example:  As an educator, I'm constantly tweaking the foundations of the sfz files so things are easier to deal with in hosts like Finale and Sibelius, all of which have fully registered Garritan Libraries.  I often need to manage these on more than one system, and it'd be nice if Finale could access and manage them via the Score Manager directly.  Since we're not able to alter the bank portions of Garritan Libraries without breaking the registration, I can't get multiple custom variations of instruments added to a bank so they can be loaded through things like the Finale Score Manager, or a Sibelius Soundset.

 
I asked Plogue about this, and their current policy is that we'd have to register any new banks with them in order to get things listed in Finale's Score Instrument Manager in a way that they can be called up from there (without having to open ARIA directly and load it as I currently do).  They're not really set up to deal with 'non commercial' developers in the manner I'm requesting, and rightfully, they'd be reluctant to register banks for an 'individual' that is based on one of their client's commercial libraries.

With that in mind, I think it would be really nice if in some future versions of all Garritan Libraries, that we had several place markers pointing to empty user sfz files where we could fill in whatever opcodes we like.  I.E.  Copy from an existing sfz from GPO and paste it into one of these 'user' sfz files, and then make our personal tweaks and edits.  They could show up as a special "User" node under each library, and give us a 128 or so numbered nodes that would point to our custom edits.I.E. (In the ARIA Instruments list of the left panel).