Hi,
Do as Pinkey said and you won’t go far wrong the CB pick is what snap on is to a mechanic absolute quality, A great deal of practise is needed to get to grips with it.
I doubt very much if your tool is anywhere near the CB pick in quality or precision.
I have owned two of these picks for a very short time and they have opened everything I have asked them to not straight away but with practise they have done the job, They are beautiful and the main thing is they work. They are always being improved when necessary.
Based on a lot of experience from CB who has been a locksmith for many years and has been picking locks for a very long time I doubt very much if yours are as accurate as the CB picks.
I am not having a pop at you, but do take the time it takes to perfect these skills as it does not happen over night but its better than drilling. That’s just not necessary in this day and age. ( unless the lock is faulty )
Again Good Luck.
