So I've jacked up the car a few times already, did the adjustment and didn't have much results to show for it. Just got a couple clarifying questions, with the allen wrench, I've read a few posts to tighten all the way down until you can't, is that ok, or do I have to keep tightening and checking a little at a time? Also, does it need to be in the air? Not sure why this is necessary but I'm using some old school jacks that are a pita to keep jacking up and down again, if it's not necessary to Jack it up the first question is kind of a moot point. I've looked all over and found discerning answers so if anyone has personal experience I'd greatly appreciate it.