I don't shoot LBs anymore. But yeah most years I shot the 1&3/4 simply because that's what most places had. 1&7/8 were harder to come by. But they did pattern better . I've noticed this with pretty much and load out of my guns. I've never stepped down in load weight and got better results , with that said . I shoot 21" barrel shotguns , so that may play into the velocity issues