Add a rating now or wait?

[felixflyer]

Hi

I have recently passed my MEP rating test. I need to apply for it to be added and pay the £89.

I was just wondering whether I will be expected to pay them to change my JAR FCL PPL to EASA soon? I take it there will be a cost involved for this? Will I be better waiting and getting it done at the same time? Will that save me a few flying/beer tokens?

Regards