Unfortunately it does matter for getting the green book.
As the campaign will only be too good to point out to you, you have to include a copy of your last LPC when you apply for your ATPL and you have to have met ALL the criteria for issue PRIOR to the date of the LPC.
Of course, as with all things CAA related, the above doesn't necessarily apply it depends who process your application.
Sent mine off at the same time as a mate, both of us included our previous LPC paperwork and both of us had only just scraped up the 1500hrs. Result: I get my green book, my mate gets a nice letter and a reference to LASORS and told to apply again when he's done his next LPC for the reasons mentioned above.
