I honestly think the more legit you've played on the account, the more likely Jagex is thinking their system gave a false-positive? No idea, but accounts I've played legit on and gotten 176~ qp and all stats for that legit, seem to last months on months. New accounts are RIP'd. Any inactive old accounts I got I can get to last for months as well, even if no tut island done.
Idk about that, I feel like doing it by hand is enough as long as it's not a FRESH account.