goneeast,
If you get EDP then emigrate, you can claim the tax back, BUT the pension will not index link at age 55 and 65
I sincerely hope, and think, you are wrong. As far as I am aware it is only the state pension that is not index linked if you emigrate to certain countries. An armed forces pension, either 75 or 05 is indexed linked at the appropriate times regardless of whether you have emigrated or not.
If you have any sources for your quote above, I and many others would be most interested to read it.
A group of emigrants in Canada are currently challenging (in the European Court) the rule that states that their UK state pension is not index linked. This has been an on-going situation for many years. I am not sure when any ruling is expected, but if anyone else has any info ...
With regard to getting a non-index linked state pension if you have emigrated, it is worth looking at reverse commutation if you can get by without taking your state pension at the first opportunity.
Y_G