yup.....t bars arnt progressive. probably why some say they get a harsh ride hafter cranking them.....instead of resting on the stops the truck kinda comes crashing down on em and then they start to do thier job. Sitting off em a little bit probly dont do much harm to the ride I wouldnt think??? Just my theory any way.....we could test it I suppose with a cranked "harsh riding truck" and throw some spacers in it between the bumpstops and the frame.
When I ditched my factory yellows in favor of timbrens I found that they were kinda squishy, you can push in a bit with your thumb. Timbrens are harder but dont really affect the ride that I can tell.