Lots of my group share MGU / SGU files across lots of different versions of biab all of the time

Forward & backward compatibility is DEFINITELY not a problem - the only thing that you do get is the warning nmessage that the style is not available & offering you a different one.

It sometimes takes a bit of fiddling to get something suitable - but as the purpose of the exercise it to be able to rehearse separately (using biab) - so that we have a chance of playing it properly when we are together - this is just fine.

... thanks for explanation of the name Michael - I was beginning to think it was some Gaelic thing.

& Bob - it probably takes as long to get from the 'Isle of Bute' to Fife as it takes from California (but the view is much better).

Chris