Went over to look at a Softail someone bought. It's used, a 2003 Heritage. I noticed when he stood the bike up the rear-end seemed to squat an inch or so. He says it has lowering shocks on it. Is this normal or is the preload not set correctly? The shocks look the same as mine and they're plain ole shocks on mine. Still looking through the self-help section but I can only find threads that deal with adjustment, nothing describing what I'm looking for.