Just want to say thanks for all the advice here. we did some adjustments to the seat and pedals and the knee pain went away. I don't normally have knee issues - they started with the pedals.

I've decided that we changed too much at one time. I'm still a new mountain biker! After the brake scare in Tsali I decided to take the bike back to where it was when I was loving life and riding with good confidence. I'll stay there for a couple of weeks and then make ONE change...not all at once. I took on too much at one time and it didn't work out well for me at all!

I'm sure I'll be back to the clipless questions in a bit but not right now. for now I just need to enjoy the bike gain.