Serrated pins are a beast! Some American brand padlocks have serrated spool pins! I don't have any other locks with serrated spools to compare these to, but they are pretty hard!

I am just glad that I can get them. It takes a long time and you hear a lot of clicks
It really depends on the tolerances of the lock. A sloppy lock with spools may actually feel easier to pick in some cases.
I would like to re-pin these locks up with different security pins so I could give you an even better answer but I am out of cash at the moment.
I had a Best lock that was 7-pin SFIC and I don't think it had any security pins at all. I could pick it consistently, but it always took over 5 minutes and my hand would start to go numb. I would like to see how hard that lock would be with various security pins!? Anyone here pick a Best 7-Pin SFIC with security pins?
