I don't know about the Duncan P90's, because by the time I got the special it had Rio Grande's in it. They were okay, but I wanted something a bit less over the top. The Rio's were too hot for what I was looking for. The Fralin neck is slightly under-wound so it stays clear. I did have to finagle the installation because the pickup routs were too deep for the screws that came with the pickups. I called Lindy Fralin and he suggested taking a piece of a paint stirring stick (like you get a the paint store) and placing that in the pickup rout to build it up a bit. Worked like a charm. The problem was the pickups were sitting too low in the body. I'm sure Lollars sound great, I have some of Jason's Strat pickups and the humbuckers in my Studio Custom are his.