Yes. So far, all the GG packs I have tried fit the 5 piece pad, it looks like it is pretty standard on the older G4, both G5's(spinnaker & sil,) the Miniposa and the Murmur. The material stretches when new, but quickly learns it's place.
She never got a chance to cut and tape her nightlite (she's works as a RN, has two kids.) I will probably do it for her since last summer bothered her. Yeah, inside seems to work better with the inflatable pads...hers crushed easily from the weight, especially the bottom edge...it was not supplying enough support for all the junk she brings...books, newspapers, towel, bag, water bottles. I have the rest of the camp in my pack (tarp, cookset, food, sleeping bag.) Using the pad pockets for more than 10 pounds of gear is kind-of wasted. I thought the pad would be OK since she wasn't carrying a LOT of weight(~17#,) so, OK'ed it. That was my mistake.