The first downbeat was factory original and came with the jazzfest. The second set purchased in America prior to Ed Sullivan was factory original and later changed to swivo. The last two 22,13,16 OBP kits had swivos but it is not known weather or not the were ordered that way ot changed over later. It is too hard to tell from the book and knowone seems to know if either of those two sets have extra holes. Personally I never understood why Ringo used a swivo. I know that they can be more flexible for positioning but in every photo of Ringo, the 9x13 seems to be positioned wherever. It never seems to be in a planned spot which seems to defeat the purpose if you ask me.
I'm sure the position of the tom was the last thing on Ringo's mind when they were being chased by millions of fans anyway. I do love how he kept the same jazzfest for every set including the hollywood set. I can't even imagine what that single drum alone is worth!