When to get ATP, now or later?

[iflyjets4food]

My only purpose for getting the SE ATP would be to not let my written expire, which it will in 2 months. I'm not due a PC before then, so there won't be any way for me to get the ATP without paying for it before the written expires. Then I can get my ME ATP whenever I do a PC because I won't have to re-take the written. Besides, isn't it annoying to have your certificate say ME ATP and SE Commercial. I just want it all to say ATP, so I'd probably do a SE ride anyway to make it so.