Brinks Commercial padlock interesting phenomenon

[SIUCpilot]

Hi all. El Cheapo wallyworld Brinks Commercial with "Boron Steel" shackle and plastic bottom guard. I am finding I can get instant opens 9/10 times raking with a Peterson wonder wave C4. I can't for the life of me SPP it, though. 5 pin, easy enough looking bitting on the key. I AM newer to this great hobby, but I can open most easy locks and I'm getting decent with security pins. I'm confused... Something I'm missing? Overlooking?

Dave

[Shackle Jackal]

if it is the one i am thinking of it actually has four pins, even though they advertise it as 5, count em'. It does have at least one spool (or mines does) and kicks over into a decent false set, varying tension helps on mine but keeping the tension fairly light once you hit that false set. you will get it !