Just getting back into LF photography. One of my holders has a light leak, but that's not the problem here. This one came out particularly bad. Others less so. I suspect an agitation problem? Or I loaded it poorly in the film holder in the tank? It's ilford fp4 developed in xtol. I use a patterson tank with the 4x5" film holder and agitate with the swirl method. Any ideas? I refer to the problems most notable in the uneveness of the sky.