I never used those so apologize if they are particularly high tension. Yeah, I've heard about the Rick warranty issue. My bass came new with no Owner's Manual or Warranty info, even though I bought it at the largest store (at the time) in downtown Chicago. Since there was no internet and no instructions I never knew about voiding the warranty, so happily put all kinds of strings on the bass. As I said, it never changed the neck, or the way the bass played. I just found the bass sounded a lot better with rounds.I specifically stated Rotosound RS66LD. Back in the 70s there wasn't much else. Rickenbacker specifically addressed this issue with the 4003. Now there are dozens of choices. If I remember right using anything other than Rickenbacker strings back in the 70s voided the warranty, I may mistaken it was a long time ago. Also if you Google the subject it pretty much agrees with my comments.
Pretty sure from the Rig Rundown series video that Squire said he rigged his with rounds too.
All I was saying in my post was that most rounds are lower tension than most flats. For the manufacturers that list tensions, you can see that pretty clearly.