Few can do 900 hours year on year without getting burnt out, in any airline.
My money is on most in RYR will be screaming for part time (if they can afford it ) within five years, so there might be lots of vacancies !!
This ' low cost ' experiment will fail in 10 years with most current pilots leaving the industry or sitting in the funny farm playing with their lips as their medical gets shredded. Just look at how new captains age after a couple of years of close calls