No, actually. I bought the pan, studs, pickup, and windage tray from Summit and had them all sent straight to IMM. Brain emailed and we talked about the windage tray. Would require some slight modification to put it on (crank interference?) and he felt with the pan having such good baffling and kick-outs it really wasn't needed. That's one of the best LA builders suggestion so I would say you would be safe without it.
Kind of the same thing in regards to the Accusump. He said normally with the roadrace pan an accumulator isn't needed but in the most extreme situations the pick-up may come uncovered but unlikely. I'm going to use it anyway because of the pre-oiling and I have it.