Yes
No
You earn exactly the same each month regardless of block hours /nights away. Currently 8800€ Capt/5100€ FO at the moment net, in the near future (well it is proposed for the new starts) "Gross" with up to 30% deductions arbitrarily levied by the agencies.
Anyhow, compared to the difference between what is currently paid to Contractors & what is proposed , that is of very little relevance.
Ask your agency about the "tax situation".
Nothing can be sure for the future, only certainty is that none of us will be in the same situation/base in 1 years time.
Very fluid/dynamic situation at this moment between NAS/NPF/Contractors.