It just hit me reading a theory about the SO6P the sharingan is a key part of the jubbis dojutsu as you can see http://www.narutobase.net/manga/Naruto/610/6 which is why i think the ripples in the rinnegan represent senju and nature or the light side and the tomoes represent uchiha and darkness or the dark side the sage was an uzumaki who then split his persona into his children now dont flame 4 this but what if splitting the bijuu was only his secondary plan?
Think of it if the 1st son was all of the juubiis evil influence in a human form why do all uchiha have a dark side in them?? the jubbis evil energy is present in all of them the deeper they go into their dojutsu the more powerful they become even the way to gain power is of a dark nature 1st you must be in a life or death situation of emotional stress like a death match or something of that nature to gain 3 tomoe then to gain ms you must kill your closest friend and to gain ems you must kill your own family member and take their eyes deeper and deeper darkness.
That brings us 2 the senju side the younger brother was second he had the sages ideals and his good heart also his strong lifeforce which is why moukton is such a OP tech it comes from the sages life force the juubi is all nature http://www.narutobase.net/manga/Naruto/610/6 so being a part of the sage naturally made the younger son a nature oriented shinobi hint hint hashi , tobirama one makes incredible moukton techs the other is easily one of the most powerful water users in the series and created the nature defying edo tensai.
This is all not a coincedence i will link the thread that gave me this idea now onto the main point the sharingan can control bijuu because it is from the jubbi itself the uchiha are meant to tame bijuu as are the senju hashis wood dragon and the way yamamto uses the 1sts power to control narutos impulses the sharingan when advanced to the mangekyou can easily control the most powerful bijuu kurama.
the reason the senju are always winning is because they have tapped into their fathers own natural bloodline abilites...sealing techniques. Think about it like yu yu hakasho yuske was using spirit energy(senju) then he died and started using demon energy(uchiha)but his opponent had something stronger then both sacred energy(uzumaki) now in this manga putting energys together is what its all about. so therefore senju use their own spirit energy added to the uzumakis sacred energy (by using there powerful lifeforce with sealing moves) and they can beat any powerful demon energy.
but what if one were to combine the senju and the uchiha thats when you get edo madara ,danzo obito all OP ninja but they lack one thing uzumaki traits that the sage had if they gain that then they will be ready 4 the jubbi completely the thread that gave me this idea is an excellent one give it a read http://www.narutobase.net/forums/sho...d.php?t=280334 in some short bullets it goes like this
1.the sage was originally uzumaki which is why he was the perfect choice to SEAL the jubbi into himself his clan is good a sealing jutsus
2.The uchiha get their eyes and evil persona from being part of the juubi
3.the senju get their will of fire lifeforce and strong nature affinity from being part of the juubi
4.the senju also get sealing techniques of a higher level since the sage agreed with the younger son
5.the uchiha are dark energy
6.senju is light energy
7.uzumaki is neutral energy
8.the jubbi is a combination of dark and light energy
9.the sage was at first just neutral energy
10.the sage when combined with the jubbi was light dark and neutral energy all in one
11.i completely agree with this thread minus a few details http://www.narutobase.net/forums/sho...d.php?t=280334
12.i know your mindfu**ed