With what you're saying Kid given enough experience, say 1000 years or so like Yama, Ichigo might have the skill to use his final form of Bankai without having to worry about losing his Shinigami abilities or something.
Yeah except I expect by that point Ichigo will have created Bankai 2, where he walks around in his bankai form and uses less energy going into Bankai 2.
"I got rid of my teeth at a young age because... I'm straight. Teeth are for gay people. That's why fairies come and get them. "