Apologies for the lack of info recently, I've been on shift and don't get much time to do much. Anyway I've been tinkering and trying new ideas on how to make the slots. The wood is Canadian Red Wood approx 100 years old. The photos are how I'm making some Mod slots which has been requested. If anyone has suggestions as to the best way to make these slots please share. I'm no joiner and working with wood is fairly new to me. I'll keep posting things and please feel free to pass constructive comments and advice.