Gentlemen of HXRC, @Knut Omdal Tveito came up with the idea of this thread, so credit to him for this. Well done and thank you sir, you are a asset to the club. If I knew how, I'd move the start of the conversation over from where it began HERE post #22. Please treat this thread as a resource. You can ask questions, share thoughts and provide information here. Just one thing though gents. If you wanna give people info about what changes to setup do and why, please try to give some reference as to how you know this to be a fact. If you can't show that your point is backed up by some science, please make it clear that the point you are making is, in fact, opinion. Hopefully, this will reduce the chances of people being led down the wrong path by a well meaning collegue. I hope that's fair? OK, fire away then fellas. @Allan Ramsbottom, @Stig Bidstrup @Yves Larose etc. etc. (sorry for any I missed - please feel free to tag people).