Hey! I have a magura louise front brake on my coust and it has started to reduce in leverage and develop play in the lever quite quickly. I have tightened it by using a 2mm allen key but after a day its back down to the leverage I really dont like. When i tighten it up aswell there is no play but after one ride its got a fair bit. This is really annoying me because it came new on my coust and if its f**king up already I wont be too happy. So can anyone tell me why it is doing this andif it can be sorted? There is deffinately no leaks or anything because the lever isnt spongy. But after one ride its really close to the bar Help would be much appreciated