no problem, i can get started with that. i've just done something with something like 400-500 parameters, so this one will be a doddle :-) the extra byte doesn't take long to add.
i'll be interested to see what happens if i do it with NRPN. i've never used those successfully. last time i tried it was from an atari and i cound't figure out how it was all sent 'simultaneously' from a cubase mixermap; but the RemoteSL seems like an opportunity to use them sensibly.