Anyone installed one of these? Is an easy install, but i'm now getting my knickers in a twist about what size volume reducer to install. The You Tube vids seem to suggest trial and error starting from the largest/thickest. However looking on the Fox website at the installation matrix, it seems that the use of the two thickest reducers is limited and largely should not be used, or worse, "DO NOT USE!". So clearly I don't want to instal those in case I do any damage or just spontaneously combust. I'm leaning to install the middle reducer, but throughout i'd canvas the experiences of the collective before doing it. Its a 140mm travel bike.