I always condition [unless I forget] and it seems to make a difference for me, but I do a lot of beers with significant percentages of non-barley. If you decide to try it, at all cost avoid over wetting, and do NOT let the grain set overnight before milling. As someone previously said, the object is to rehydrate the husk without affect the kernel, leaving it wet that long will almost certainly soften the kernel. I got mine a bit too wet once and wound up completely gumming up my mill, that was one mell of a hess and the mash efficiency on that batch was terrible.