Related questions: Clearaudio has a strobe disk with a drag groove which allows one to measure the speed with the drag created by the stylus. Is the drag created by the stylus significant? Will it vary from record to record (or even track to track (or even moment to moment as the pitch of the music changes))? Will the drag vary depending on the weight of the platter? Is the industry standard 33 1/3 assuming no stylus drag? Are we all nuts to worry about this?