Currently 10 aircraft on the fleet with hours ranging from 1900 to 4000+.
You could fly a Legacy or GV and do three sectors a month or fly the Mustang and get more landings in a week than others do in a year. It's horses for courses and flying means different things to each individual. You can get airborne out of Luton and engage autopilot for seven hours and spend a week strutting around the Caribbean in your Ray Bans telling the world what a great pilot you are or do a four sector day around the heart of Europe with lots of real flying (and strut around Nice or Geneva.....). If you want to get to Paris from London quickly, a Mustang out of Blackbushe is hard to beat. Your GV out of Heathrow won't have even got airborne by the time the Mustang pax are getting off in Le Bourget.
Not every pilot is doing it for the money, some have longer term career plans some have other careers, pensions or separate business interests. It's supply and demand, if it's not for you then you don't apply. Bigger jets command bigger wages, that's just the way it is. Nobody gave Blink five minutes when they started, now they have their own airport, next few years should be very interesting, why wouldn't you want to be part of it?