Indeed...
Is there a case for suggesting that an 'EP' is usually titled as per the lead track?
Interesting, but I would probably take the opposing view on this. From my experience, an EP is more likely to be called something other than any of the 4 (yes, 4!
) tracks. Depends what examples you pick I think. It's all a bit woolly really. Maybe John's double 7 inch single could/should count as EP's? Or perhaps an EP is a 4 track single where all the tracks are potentially lead tracks? Less of an A side/B side thing.
Looking at the wiki entry though, I do like the concept of a "Double EP"!