The tires megathread has some statements and feedback regarding the 3.0 on the front and possible mitigation (see my signature for a link). Rubs fender bolts at speed, slightly difficult to install.
I know what you mean about the tire possibly being difficult to fit without a jig. I think that it comes to personal experience, some nuanced knowledge, physical strength, etc.
I haven't tried it myself yet because my tires are still good, but I am dedicating myself to doing my own tires because I don't have a good way to get wheels to the shop off the bike and I am way, way, WAY too cheap to get them to do it wheels on. There's daylight robbery, and then there's what the dealership would ask me to do.