
I have a question regarding the difference between slim line and standard picks. I have recently bought the Southord MPXS-20 set. Unfortunately, I haven't really read much about differences in locks and now I'm a bit stuck. I'm quite sure, that these picks aren't slim line, since I'm quite unable to move it around in the lock on my door, which is a standard one used here. I'm also trying to pick an ISEO padlock and I even got it open once, although I admit it was totally by luck, so I guess it is possible, although quite hard. Now I'm not quite sure if it's the picks - I have a feeling that I keep pushing the 1st pin too high with the pick, while picking the ones in the back, because the key is really cut deep at this pin - or if it's just lack of practice. Anyway I wondered how big the difference between slim line and my picks is and if I could perhaps "convert" my picks into slim variants by just "thinning" them with a grinder or something like that? And if that's possible, how much should I grind off?
I hope I make at least some sense, but since it's 3:45 AM here I am a bit sleepy already

G'night