I’ve had a ULA Ohm for a while but not used it much because the buckles on the hip belt extend beyond the padding when the hip belt is tightened. This led to them digging into my iliac crest. Recently, I had a brain wave to extend the hip belt with some 3mm closed cell foam and some spare nylon cloth I had kicking around.
Yesterday, I put my plan into action. It was remarkably easy to do a decent job just by hand sewing. I cut the closed cell foam to the right size. I then made a pocket from the nylon, sewing it inside out then turning it right side out. Inserted the foam. Then sewed on to the hip belt. The buckles are now protected from rubbing.