I bought the rally pros and fitted them but I couldn't use the original bar end weights as the hole in the guards is way too small.how have people fitted them with the original weights?? I'm noticing a hell of a lot more vibrations without them and it's starting to do my head in. Are there any aftermarket Wieghts that work with the bolts that came with the acerbis guards or am I going to have to take a really large drill bit to my brand new guards and use the old bolts??