all B1900s are in Hassie Messaoud Algeria at present. The 1 from Mauriatnia has been re located there awaiting contract re newals
5 weeks on and 5 off is norman but operational requirements come to play, eg extensions of days in the field
there are a few 7T co pilots who cannot fly the HB reg,s so new hires will be on the HB machines I'd guess.
big breww ha ha with the HB and 7T registration s, crew have to be checked out on both and some fly one and not the other and vice versa, makes for a operational nightmare
one thing about Zimex, in their 40 plus yrs the pay to crew has never been missed.