I did encounter however some buffer problems when sending a lot of data over fairly long periods of time (15 minutes, say).
I've also got problem with midi in PD. while sending full speed midi data, I've got a flush message with slow computers. So PD can't receive full speed midi messages on slow computer (I don't know the limit between slow and fast computer)
For I cube, the solution can be (???) an analog filter between sensor and Icube, to reduce noise, and then reduce midi data transfer.
hope that help.
Cyrille
Cyrille Henry R&D Hardware Ingeneer La kitchen www.la-kitchen.fr