I don't really understand how age is different from health :/ if you have created through compounding 10 years stored (from 1) and then drew that 10 years, so you are 9 years younger then you were, there is no good reason why it you took off the atium (or just burned it all away for age without storing it) you would suddenly become old again :/ your body would then surely age as if you were 9 years younger, you are creating more age in the same way miles is creating new health, if he gets an arm chopped up, creates some health to heal it then takes off all his metalminds, he doesn't start losing his arm again because is was already lost and he needs to keep burning excess health enough for that of an arm up until he dies if he wants to keep said arm, he can just turn it off
In the same way why would tlr lose all the age he has created just because he lost link to the metalminds, sure he was 1000 but his body was like 30, there is no good reason why actual age counts at all, it the body has just been made 10 years younger, its been made 10 years younger, not 10 years younger up until the point you stop tapping
(only woke up an hour ago so I may have missed something pai fully obvious but as I was reading this I realised It didn't make as much sense to me as I thought it did :/)