Bored? Absolutely not, this is great stuff, Steve. I have some questions. Do you notice any difference in sonic quality by going at 45rpm over 33rpm, any change in the highs and lows like for example taping at 15 versus 30ips? Did BL, know when he mastered the vinyl songs that they would be ran at 45 instead of 33 and make allowances for this? Also, you touched base on tracking angles towards the inside of the disk, because 45's were typically smaller than LP's and the major difference being the outside of the LP between the two, does the stylus angle tend to distort on the outside of the LP, compared to the 45. IOW, is the angle a concern at both inside and outside of the large disk.
Seems to me that a tracking arm like a cd player would eliminate the stylus angle problem, I'm wondering why they haven't designed turntables with a cross member tone arm that remains perpendicular to the grooves, rather than one that arcs across the surface. Maybe they have, not sure, but wouldn't it be a better design?