scuzzelbuck ( snipped-for-privacy@hotmail.com) gurgled happily, sounding much like they were saying :
my suspension has deteriorated over the last 12 months and has become
> harsh and uncomfortable. steering became slow to re-act. I changed the
> pump, all 5 spheres and the two height correctors for new components
> but still the ride is choppy and uncomfortable especially at speeds
> around 30 mph.I am now unsure what to do next I am running out of
> components to change. the only thing I suspect is the front struts
> which stick when put on to the high suspension setting but i am unsure
> if this fix my problem. can anyone help
You didn't mention whether the fluid has been changed. If not, it needs it. Even if it has, flushing may help - change the LHM for flushing fluid (any of the usual suspects will supply), run it for a thousand miles, then change back to new LHM.
If the front struts are sticky - and BXs do - that will also not help.
What happens if you do a "bounce test"?