Chief I found two slotted blocks a few years ago and had this 16 made and I have a Buxton fighter coming with the other block. I don't currently know of a source for more. Sorry I am not more help Peter
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Peter Kaufman NRA Life GOA SAF RKCC CM-023 RKS #5642 SHAG # 005 Ironwood Nut Life is too short to have ugly knives