Hi Man from Uncle,
I don my tin hat and wait for incoming, but as politely and humbly as I can say it, I am a CPL (FI) & Iam paid by the hour at 37/hr, and I do manage 70 - 85 hours of work each month (10 - 15 hours of which are structured groundschool which is paid at full hourly rate).
I admit that this is unusual for a UK cpl FI at a flying school, but believe me there are a growing number of us out there now earning 35 to 40k.
I get two days of a week as well.
Take care, and safe flying, RV