sounds good, but two things:
the airfare shouldn't cost more then $1500ish USD via Gulf Air, Etihad Airlines, KLM, or Delta
as far as time inbetween, it sounds like they are modeling after recommended time between laser treatment, the 6-8 weeks is the usual growth cycle rate, going after 6 weeks or so would make sure that hairs are in the right part of the cycle so they can be killed at best rate