naive agate
With in-game routines, do you mean aim trainer routines made for specific games, or do you mean playing the game first and then using an aim trainer?
Anyway, it depends on what you're aiming for. If you want to get better at the game's aim technique, you should do aimlab routines first, then the specific game routine. If you want to get better at Aimlab, it's the opposite. This, as long as you don't burn out mid-session.