I dealt with a baby who had Pierre Robin Sequence as part of
Weissenbacher-Zweymueller Syndrome (a type of dwarfism).  She went to
breast with careful positioning - as you describe - did not have an airway
problem.

I will be happy to talk to your doc as a resource.  I'll email my beeper
number by private email.

Gail
Gail Hertz, MD, IBCLC
Pediatric Resident
author of the little green breastfeeding book - disclaimer: owner of Pocket
Publications