Actually, from my EXTENSIVE SCIENTIFIC EXPERIMENTS......
........I've noticed in my last Klon build that the Ge Diodes don't have as much affect as all the hubbub around them would indicate. I was building a Klon for my brother and I had the bright idea of putting some different diodes options on a toggle switch for him. I tried a bunch of different silicon and Ge diodes and differences were so negligible that it was hardly worth doing. I think the whole magic Ge diodes things in Klon's are just more of the Centaur mythology BS. I actually have Bat 41's in my own Klon.