Riding my 2Souls QuarterHorse on a bumpy trail ,I became aware of just how smooth it was over rough ground.Then the penny dropped,my Bikeyoke Revive had got a bit of air in it.Giving me about 10 mm of suspension .Fixed it there & then & the ride was back to normal.So I think the components & pressures we use do such a good job of masking what is going on with the frame,it is almost impossible to tell.The good news is that with the wheel & tire sizes available today,we can choose any frame material & make it behave how we want it to.Just need to find out how to get the air back in my dropper post!