Dave, another option you could try is fitting a rubber blunt over a glue on blunt for a combined 300 grains. I have been using some of the bunny buster rubber blunts from 3rivers. The 11/32’s weigh in at around 115-120 grains. They have quite a bit of uneccessary ‘sleeve’ that fits over the shaft that you can cut off with scissors to reduce their weight. They shoot as straight as I do and I haven’t broken one yet (I have broken a few shafts they’re attached to though 😆 )
I doubt they’d work with the 225gn hex head, but if you could source some regular steel blunts in the 180-200gn range with the rubber blunts over top you’d be set.