AP: How much of $100 FAAB to use? (1 Viewer)

PPR. Start 2RB, 2WR, 2RB/WR. $100 FAAB. How much FAAB do I spent on AP this week? He looked good, in a run scheme he dominated at back in MIN, and game scripts will favor him. I actually like Thompson taking snaps to keep AP fresh. If I get AP, thinking of dropping Alf (I only picked up because I lost McKinnon)

Current roster (typical starters in BOLD:
RB: Gurley, Hyde, JWhite, Cohen, Alf, Chubb

WR: Thielen, TY, Landry, Crabtree