I tried all the treadmills that have different "shock absorption" properties...?

for example, Sole is supposed to be quite solid, while life fitness/matrix has softer feel, and nordic has its own unique suspension.

i tried horizon and then lifespan which supposedly has 8 shock layers unique feel

i did not find a difference between any of them while lightly jogging except that the ones with reinforced steel built into them which were heavier, did not move around as much

am i doing something wrong, because people told me on here that there is a somewhat big difference in each brands feel once you begin to jog (not walking) idk...