If you read the pages I linked to you get the info you need at least about stopping power and getting rid of pulsing (if any). Like all other brakes it is about setting them up the right way, the right brakelever, the right cable and housing and adjustment. The guy in the blog bent his front fork becouse the drum brake was so strong (after he changed housing)and I think I remember he is the one that said it is no problem setting up a drum brake so you can dive over the bars if that is what you want.