For Fixed Protection you must apply before 5 April 2014.
For Individual Protection you must apply before the end of the 16/17 tax year.
HMRC will enhance the 1.5M limit for any contributions made whilst working overseas.
I do hope I have been of some help guiding you through this maze.
I think probably the kernel in your response was that the LAC applies to ALL pensions and the Fixed Protection will freeze ALL pensions ( I would not be able to continue to contribute to any of them) . I needed to have this confirmed so I could make the correct decision before the April 14 deadline passed.
As I now have time before the Individual Protection deadline to set up my SIPP and research the matter further, I think I will seek further advice from the Forces Pensions Assoc. and SPVA.
One further question you could answer for me if you would:
With my AFPS pot currently at £507,718 for LAC purposes, does the 'pot' grow in line with CPI over my (and its) lifetime in the same manner as the AFPS pension grows inline with CPI? In which case, should I live to be 102 (as my Nanna did) I can see that a "pot" growing @ CPI may well breach the LAC limit over time.