Most Uk makers have a large export order book so i do not see them moving into SD's then again M&S did not move with the times nor did IBM so it is often the case that manufacturers cling to the declining market.
I have not said anywhere it will be the end of MoBos in the UK - I have said it will devastate the UK CRUISING power boat market. it will have a huge effect on the market place and exclude many who struggle to keep their boats and are the backbone of UK motor boating.
Yes, I know that discussions are going on about which 50 foot planing boat to go for despite the red threat - I am not sure how many see SD boats as a way out of the red issue. My bet is that most do not see that as a route offering some proofing against the death of red.
I am not even sure if that 50 footer is destined to be berthed in the UK waters
Even you are delaying decisions and hence delaying orders pending the issue - many others are holding fire as well. That in itself is an effect.
It will be interesting to see how all this turns out ...