Essentially you can't really I mean you can put it up a little higher to adjust for how much it will settle with your weight on it but it is tough. With a isolation based post like the Kinekt you would essentially do the same but when you actually encounter a bump where you would engage the springs you wouldn't just be going up and down you would be going down and back so your knees will be in a better place.

The Redshift one is not a bad one but it is all adjusted at the bottom of the post so you cannot cut it down if needed and you have to deal with a greasy mess if you need to adjust and then you have to re-adjust your seatpost height each time and make sure it is aligned right. It is not a terrible thing but I would rather have my Kinekt. Now for a stem I think their stems look the best the Kinekt uses springs vs elastomers so they work a little better but they don't look as good.