From the CFI's I have met its just a can't be arsed factor.
Your CV goes on there desk gets cover up by fuel bills when they eventually read it its 1 month old so goes straight in the bin.
Also as well because of the range of Instructors out there with all the same experence and licenses its very easy for them to discriminate.
ie
No burds
Ginger nuts
Old
Young
Valid IR
type rating
Geordies
Northen
Southern
Welsh
Jock
English
Irish
.
The list is endless and I have heard them all you can't win. You just have to be in the right place at the right time. The habit of Airlines now to grab instructors with next to no warning is proberly annoying the hell out of the CFI's. It can literally be interview on Thursday and start type rating the next Monday.
And lets face it who isn't going to be bothered breaking a contract of 1 months notice if your wage is going to double and you get to fly something with 2 engines. Ok for the FI but the CFI then has a huge hole in his timetable and unless they get another FI the next day they will loose custom. So the next person that comes through the door gets work.
MJ