Need clarification:
If you think that ten-tails beast eye is a combination of sharingan and rinnegan then I believe logically if u divide it up into two, you get 9 tomos and 3 circular lines correct?
http://www.onemanga.com/Naruto/467/17/
In that case uchihas got the 3 tomos as you have said and RS gets the circular lines (which I do not understand why he does not get both but thats not the issue here). Now as you have said above each line has a power, ok, uchihas can open up 3 tomos, wut about the other 6? surely byakugan and rinnegan cant have anything to do with it.
This theory also brings me to another question, rinnegan has more then 3 circular lines so where did the extras came from?
http://www.onemanga.com/Naruto/439/01/