I’ve got the MP tray that’s been in there since the first go round (with a slower lobe cam and softer single springs) but when swapping cams you have to loosen and drop the pan at the front in order to fit the timing cover, but I was planning on removing the pan (I have unobstructed access) to reseal everything properly. Never thought of removing that tray for break-in but I like the idea of additional splash and the added cooling it would likely provide, especially for an aggressive lobe cam, stiffer springs and increased rocker ratio. Certainly can’t hurt.