Ah, the thread title made me think this was about mixing two different types of powder (one slow, one faster in a predetermined ratio) to formulate a new one!
Apparently it was a done thing back...
Type: Posts; User: caberslash
Ah, the thread title made me think this was about mixing two different types of powder (one slow, one faster in a predetermined ratio) to formulate a new one!
Apparently it was a done thing back...