In addition to Phills comments :

As while back it was decided to reserve the spot in the top of the sail for the company that makes that particular F16 and to have the F16 class logo near the leech at eye level in the bottom part of the sail.

I think we should stay with that convention. Actually the F18's have a similar approach to logo's.

May this decision should be enforced more stringent by the GC ?

Wouter