I have a few NEI molds that I recently purchased. The two cavity molds work fine with my RCBS mold handles, but the the 4 cavity mold has a thinner cut out where the molds attach. I measured it with my calipers and it is ~.25 inch where the mold handles are ~.31 inch in diameter. I don't want to grind down my handles and I was wondering what mold handles I should go with.