I have suggested for some time that the Crown Graphic lensboard is the best choice for most LF lenses. I always have a TRF Crown Graphic so it make extra good sense for me. All my lenses, except for two very large ones, are in Graphic boards. I use them on Toyo View cameras with Toyo to Graphic adapters adapters. My older Toyo field camera took Graphic boards when designed. I also have Beseler enlargers, which use a flat 4X4 lensboard. Since I sometimes use taking lenses on the enlarger, and enlarging lenses on the cameras, I have adapters that make that easily possible. There are clones of Graphic boards, which just like clones of anything else, could be excellent replacements, but some are junk.