Thanks all,
I was unsure what the advantages/disadvantages were, I remember in some thread people were criticizing a guy's bike for having his wheel too far away from the cutout.

I don't think I'll make any pains to get it in there, don't really care that much about "aero", doubt it'll help much for me anyways (I do wear a kit. Only ride on the street when I'm riding to the track), as I'll probably be losing races by seconds, not milliseconds.

@bleedingapple: are you angry at someone in this thread or just people who overobsess about the cutout