Did you fit them yourself Sgt? I have have a set ready to be fitted and toying with DIY or friendly specialist for about £120.
I did them myself and it's fairly straightforward but if you are unsure, get someone to do it. I will admit to doing it in my mates garage and he runs 3 Superstock 1000 Suzuki's in BSB and he knows more about bikes than most people have forgotten. He just checked it for me and it was all good.
If you go on youtube there are a couple of tutorials and just make sure you put the correct oil level in which is marked on the Hyperpro box.