LogicalOne Yep on that golfshaftprofile dot com site that Tim H built. There was room for Deflection profiles and frequency shaft profiling but most 11" measurements were iffy mostly because of frequency meters and clamps mostly 5". The Kaufman slip clutches seemed good. John Kaufman Waukesha, WI ClubScout built me a hydraulic clamp so clamp pressure could be the same every time. Tim Hewitt put a lot of time into the clubmaking industry. ICG, PCS before that.
If you are in Ohio, KY that area of the USA and looking to be correctly fit Jim McCleery is your guy! Jim puts a lot of effort in the ICG.