That makes sense purdyd - I have also sometimes used a wide in front and normal narrow rear.
Because your front foot is twisted almost always, it is more comfortable, and sometimes not that important that your foot is over the center.
Whereas the rear, you HAVE to be over the center IMO, and the most important is that it stays with a tight hold when doing aerials or just pushing max in the cutbacks.
I never use std 15.5-16 cm spacing on my front strap - perfect on the rear where feet are usually straight into the straps, but on the front ones I always move once inch to the next insert.
This way I can twist my foot comfortably - and IF I want to ride more lean in surf style over the center, this can be done too with this one insert wider spacing.