This. He doesn't totally waste it like a moron.I think his Teleportation has been a 3 tomoe ability, Kamui is his MS one, and he just revealed it a couple of chapter's ago.
I think he still has quite a bit of traction left on it.
^This...IMO!Senju DNA.
maybe he and kakashi have a weird sort of EMS since aren't you supposed to get the EMS after the MS when you take someone else sharingan.^This...IMO!
I mean really, what else would explain it?!