Since you asked

While I almost always limit the use of crystal malts to 20L or lower in my IPAs, I do sometimes use C-40 or C-60 in APAs, mostly during the cooler months. I also like Munich instead of Crystal malts. For Summer APAs I tend to stay with light colored Crystal or other light colored specialty malts and often use some malted wheat too..
Just about to order grain for my next 5 Summer Pale Ales which are a good example of the lighter ones I like this time of year.
80% Viking Extra Pale 1.8 SRM, 10% Viking Golden Ale Malt 4.8 SRM and 10% Viking Wheat Malt 2.5 SRM for a beer color of about 3.6 SRM. I'll mash at 150F to keep the body light and hop to just under 40 IBUs with 2/3 to 3/4 coming from bittering additions. These 5 will be bittered with Warrior and each will use a single variety for flavor/aroma boil additions between 15 and flameout, depending on the AA%.
Currently planning on Cascade, Centennial, Chinook, CTZ and Willamette for these beers.
I do play around with recipes I find on line too, and have found some nice ones that don't fit into my typical profiles, so nothing I do is chiseled in stone.