Ok, I'm going to let you guys in a secret that works with ALL binding brands, and eliminates pre-release....
If you keep pre-releasing on a setting of, say, 5.5, turn 'em up to 6.5. If you STILL pre-release, turn em up again. When you reach the point where they don't pre release anymore... that is your setting.
Remember the DIN chart is just a set of numbers to standardize mechanical release values among different brands. A setting of 6 on a Look is theoretically the same as a setting of 6 on a Marker. However, because of elasticity differences, design differences, etc. there can be differences between brands. As has been mentioned before, this topic has been beaten to death. People seem to feel that they can ski Looks on a lower setting than Marker (as an example) This may be true, although I don't have enough time on each binding to say for sure. HOWEVER, if you normally ski looks on 6, then go to Markers and pre-release on 6, I don't necessarily think that is a problem with the bindings. There IS a number where you will stay in. And don't worry, it won't be too high. You aren't going to suddenly go from a number where your ski comes off for no reason, to a number that won't ever release.
So turn your bindings up and lets move on.
I personally ski Markers. They are set on 12. I never pre release. If I owned Look or Salomon could I stay in with a setting of 10? I don't know.... doesn't really matter to me. Would it be an advantage to set it lower? People get a little too hung up on the number that appears in the window of the binding.
this is no secret, UP, read: "The Ratchet Effect", here, http://www.vermontskisafety.com/faq_..._skiers_8.html
You have a bad case of the disease!
As you will see, there are many more issues that require investigation before pulling out the screwdriver!!!!!!