CW247
It's pretty straightforward. Any easa license holder can currently work in the UK certifying G reg aircraft for the next 2 years (at least). The UK issued license holder does not have the same reciprocal opportunities in Europe.
I fully understand the intricacies of it all but its not a level playing field. If we aren't getting a grace period in the EU then we shouldnt be granting one to EASA issued licenses. Petty? Absolutely, but I don't see any other way for it to be fair.