I have two bikes, a newer Campy 10 equipped model and an older Shimano 9 speed model. The wheels on my older bike are in rough shape and they are looking to be retired to the trainer soon. I have a set of Campy Proton's (Campy 10 speed hub) that I would like to use on my Shimano bike. I understand that you can purchase a campy 9-speed cassette (loose cogs) and a conversion spacer kit sold by Wheels Mfg. Has anyone had experince with this type of conversion? Are there any tricks to this? How will a 9 speed campy cassette work on Shimano without changing the spacers? Mind you, it doesn't have to be perfect (spare/winter bike), but I would like it to shift. Thoughts?