"UKARA is not the defence, it's a way to prove the defence." [If you had put the question in your first post then I could have quoted it]
Agreed.
Site membership is my defence. It proves that I am a regular skirmisher (x number of times within that years membership period).
I have never applied for UKARA, not all airsoft sites use or like the scheme, and because I do not buy from abroad have no need for the UKARA number to assist Customs.