It's quite possible that doing morphs will cause midi congestion.
Fot example, if you have 8 midi tracks and lock all the 10 cc's you have 80 cc's simultaneously generated per ' tick' the crossfader moves.
I'm assuming the crossfader has a resolution of 127 steps here. so if you flick the crossfader from left to right in a quarter of a second you will generate
8 tracks * 10 cc's * 127 possible values *4 (4 qrtr seconds = 1 second)
this will be 40640 messages per second.
Add up you're sending note data as well for 8 tracks.
I think you'll experience timing problems and other strange behaviour on the machines that are sequenced by the octa.
So, what would you do? Implement it with a warning not to use it too extensive, causing a lot of discussion what should and shouldnt be possible.
I'd love to see this but I think it will cause a mess midi-wise.