I got some used oem struts from a friend he says they are in good condition which is good since mine are blown. I take them home and when i compressed them to check if they are good they just stood compressed. Is this normal? When i pulled them out they were very hard to pull out... also my friend says that all the tems are set on sport mood except for one which you can tell because it goes up and down easier than the others. I wanted to know if there was a way to tighten them or loosen them with out putting them on the car. I would like them to all be on normal when i put them on or all sport, it just makes it easier.