Its hard to say what recruitment is going on based only on the feet pointing in or out, the WAY the squat is done, ie. MOVEMENT PATTERN is sooooo many times more important as far as the transfer of training goes.
If youre going on two similar good squats, where the chest and shouders are driven vertically, the feet pointing OUT is going to involve the adductors and medial hamstrings more, and the feet pointing straight forward, the glute med. more.
A few degrees out is perfectly fine, once you start going duck footed though you need to work on mobility/form so you dont develop shitty movement patterns.