Raise size vs squeeze?

[pp262]

2/4, Hero is utg with AKo, ~120BB eff stacks. If I 4-bet here with 100BB stacks it's always a shove but how deep does a smaller raise become a better play than a shove?

SB ($389.50)
BB ($475.00)
Hero UTG ($479.30)
MP ($398.00)
CO ($380.00)
BN ($180.00)


Hero raises to $14, 3 folds, SB calls, BB raises to $56, Hero...

[zio_slim]

Hero calls and plays some postflop poker in position...
no need to get it in here now.

[Overfloater]

$116