Proposal for mid-score instrument changes with transposition

As you may know, support for mid-score instrument changes (via the Instrument element on the Text palette) was added in 2.0. But this controls playback only; the transposition is not honored. Or, more to the point, it is partially honored, and wrongly. I am working on fixing this so the transposition works as expected, and I basically have it working for newly created scores. The question is how to best handle scores in 2.0 - 2.0.2 that tried to use this feature. There are a number of workarounds people have used to try to get both the printed score and the playback working. What I am looking for is some real world scores people would be willing to share and discuss so I can see how people are coping wiht this right now.

Here's a summary of what I know thus far:

1) If you enter notes into your score, and *then* add an Instrument text and change to a transposing instrument, then neither the sound nor the appearance of the notes will not change, regardless of the state of the Concert Pitch button. So if you start out with Alto Saxophone and then change to Clarinet, when concert pitch is off, any existing notes will still show the pitches transpose as appropriate for alto saxophone, even though they will play back at original pitch. it is as if you change the sound from alto saxophone to clarinet only.

2) If you then enter notes into this passage, things get really confusing. The specifics will depend on whether you enter the notes by clicking, typing, the Piano Keybaord window, or MIDI, but bottom line is, you will get notes that either don't look or don't sound the same as the notes that were entered before you added the Instrument change. I'm actually very surprised this hasn't been mentioned before - it's a pretty serious problem in my view.

So I am guessing that people using this feature are not running into 2) or we'd be hearing about it, meaning they mostly enter their notes into the score *before* the change of instrument - or they are not dealing with transposing instruments. But I am not sure what people are doing to get a score that both plays back and looks correct. I mean, I know what workarounds exist, and how I personally might go about it, but I am hoping to see scores from other people so we can see what kind of state they are in currently and I can figure out what makes sense in terms of trying to either preserve it or correct.