The IPLs I've had were so close to well made IPAs that I have wo wonder what the point if an IPL is. Because you can?
Pretty much. I've wasted my last two lager brewing seasons chasing the elusive "hoppy lager". In the end I've come to the conclusion that it's simply an IPA or APA brewed with a different yeast strain. Don't get me wrong, the beers were great and I'd probably do it more often if I had the capability to lager year-round, but it's no different than using something like WLP007 or WY1968 instead of Chico. It's simply a different yeast choice and will give a different fermentation character; a very clean one in this case.
FWIW, WY2007 (Budweiser) is a very good choice for this. It is the cleanest yeast I've ever used, but there is still a hint of that apple ester note that plays very well with American hops.