To be honest I spoke to lots of pepole, expert and not when I had really bad knee problems. I spent a lot of money. However I decided not to scrimp or save, and rather than going to see Joe Bloggs I went to see Cyclefit in London for a fitting. They are reputed to be the best according to some people, a bit strange by others, and downright eccentric by others.
I was shocked that my saddle height went up 45mm. I was ' no that's just stupid' but it seems to have helped. I'm sure my bike fit was not the only problem, as I had the same problems running etc, but what I wanted to achieve was to draw a line under everything, and be assured that AN EXPERT had set me up on my bike, and that my fit was condisered to be spot on, before looking at going under the knife and injecting steroids etc. No knife or steroids for me to date. I accept there could be a placebo effect. But who cares. I'm riding my bike for as long as I want so far and I'm smiling. Don't mess around yourself, don't get swallowed up into fitting systems which rely on bracketing you.
However I'm currently waiting for my custom frame to arrive which will give me the right fit without raised stems, stupid amounts of seatpost etc etc.