There's lots of info about shortcuts & route choices for the Bob Graham, but I've not found anything at all for the Ramsay Round. There's a handy website but it's short on route details: http://www.ramsaysround.com
Steve Fallon has nifty route descriptions for doing Nevis & the Mamores (e.g. http://www.stevenfallon.co.uk/nevisroute.html) but it's not aimed at the Ramsay Round, more long runs in the hills, so it's not quite the right route and it's the wrong way round for the Mamores (assuming you do it clockwise).
For example, can you bypass Na Gruagaichean's West top on the south side? Is it possible to avoid the scrambling on An Garbhanach by sticking low in the Corrie and climbing up to the col? From Sgurr a Mhaim can you contour below the Devils Ridge to the col with Stob Ban? What route do you use to get up The Ben?
I'm on holiday in Glen Nevis in June so I'll be doing some reccies :-)