You are right, that is the downside of the fence mod. But even if it did rename the meshes (which I of course could do myself too), I wouldn't have matching LOD assets for the new fences, so in a way I'm content with using the same LOD models for all of them. They are close enough that I haven't noticed any discrepancies so far. I already tried regenerating the LOD for Markarth without the flag and it did indeed solve all the issues. I'll try with your suggested edit to the cell record next