This is a discussion on $10 NLHE 6-max: AK 4bet pot, turn decision within the online poker forums, in the Cash Game Hand Analysis section; Villian Stats (VPIP/PFR/AF): 41/36/1
Only have maybe 40 hands on V so take the stats with a grain of salt:
Hand History driven straight to this forum
I think I agree with fund here. You do have the range advantage from preflop action, but based on his play, I think 99- even QQ are a solid part of his range here. And none of that is folding to a turn shove.