I am going to assume the same as Lockmistress and say padlock? If you just need more tension, then her suggestion is right on the money!
If you are talking about the initial tension and tension just while picking, this may help:
I have a Brinks R70 Diskus style lock that has a spring loaded plug... well, it's actually some part of the mechanism I would imagine...
anyway, when picking something like this, I try to imagine it more in terms of plug rotation than in how much tension. Just thinking of it in this way seems to help me out a bit.
Stick in your tension wrench and bounce it a few times to get a feel for where it stops and then push it about that far and just use enough tension to hold it there. When you feel a click or two from pins possibly setting, then you have the right amount of tension. (or close at least!)
The brinks that I have has spools or shrooms, and I find that when I false set a spool I sometimes need to push on the wrench harder for just a second to get the spool to false set so I can neutralize it.
Neutralizing a spool on a lock with a spring loaded plug can be a bit mushy. I find it hard to feel things on this particular lock, but it just takes some getting used to.
The bottom line in my humble opinion is this:
It's not much harder, just a bit different!
Just concentrate on trying to keep the tension wrench "balanced" against the spring tension to keep it in the same spot and keep feeling for clicks to tell you when things are starting to go your way! Gently persuade the lock to open!
If you still have trouble, well, come back and give us the specifics, but please search first. You may find a thread that starts to answer your question, or describes your problem in a way you never thought of.
Oh! and good luck with your springy plugged lock!
Pick it till it opens!
on other forums i used to edit stuff
