the area built up with weld moves the stop for the stand, which is the part that contacts the frame, so it doesn't go past center as far. ALL these stands wear, I've welded most of mine over the years. the weld fix, along with new bolts and bushings will make a noticable improvement.
i don't think your gonna get better pics than bushyb's.
also, worn suspension or too much sag will make it much harder to lift the bike onto the stand. if your bike has 35 year old clapped out suspension and the thing pretty much sits on the ground, it's gonna be a bear to get on the stand, regardless of how good the stand is functioning.