That will depend if it's a solo trip or not? So far for one trip the maximum ks we've done 2 up is about 300 one way on setting 3. After getting home I adjusted down to two and that's were it's been since. More than likely yes if we both go together but on my own I'll leave it as is.
Just make sure when you adjust the rebound on these is that don't go from 3 to 2 directly. You need to turn the adjuster the other way (3,4,5 etc)