JimL
Thanks for the clarification and history behind the issue.
My initial post echoed a couple a points disseminated by a BHAB letter doing the rounds - so i was a bit lazy in reviewing the detail. Must admit though, tad surprised at the perceived lack of impact to singles/light twins (older variety) as the letter is full of woe!
If there is a 'commercial' advantage to be had - I'm all for it but it's going to take many years of trading to recoup the 20K estimate for UMS installation:-(