i got lvl 39 still safe. i dont remember when do i start boting it, but it was start fresh from lvl 1. all my acc banned accept this lvl 39. all ban acc was once got capthcha's, sofban, and bot/fly during updates. FYI, i'm still sniping on lvl 39 acc, very very extra careful, and never once caught a sofban. i dont have a clear answer bout how the ban operate, but i hope this info might help.