Nothing else should change besides Timer0, so if you get anything different for the other parameters or if your Timer0 varies by more than 1 or 2 then you did something wrong. If it was just Timer0 changing slightly, then keep doing it until you see which value is more common.
I'd do it maybe 3 times to start with. If you get the same Timer0 value every time then use that, if you get two different ones then keep doing it until you're satisfied that you hit one more often than the other.
Timer0 usually varies between two values, and one of them is usually more common than the other, so it's recommended to calibrate 3 or 4 times to make sure the one you got is the more common one. Once you've found that, then you can move on to Time Finder.
sorry about the late response, I was busy battling earlier but I was looking at the Wi-Fi blacklist to make sure I do not battle hackers or disconnectors. I can probably catch one for you on Platinum and shift it over if you need it :)