You could always tell them you lost it, then the computer will automatically apply the new rules when they print you out a new one
When I first read this I thought it might just work ! That you might have found a way of getting round the system.
I'm one of the AME's who use the AME-Online system, with access to the CAA computer at Gatwick for information updating and inputting, and for generation and printing of certificates.
I looked up an SPL whom I'd seen during 2006, aged 29, before the rules changed, and whose 32nd birthday is in Aug 2008. The CAA computer is STILL showing his expiry as being in Aug 2008, and if a replacement certificate were requested now, it would also show the same !
Nice idea ! But sorry, it wouldn't work !