Thanks for all the replies everyone, much appreciated. Well then... it looks like either a 1x7, 1x8, or 1x9 is in the works. So, is it confirmed that a short cage rear der. will work with up to 9 rear cogs (Shimano 105 SS to be exact)? What type of front chain guides are out there? I could rig up a dummy front der. but if they make specific front chain guides that would be better. Thanks again!