Actually it makes quite a difference to many people Fatbus. I'm pleased that you're happy with 20 DOH flights, as they say one man's treasure is another man's trash. Everybody has a different opinion on what is a great roster.
One of the reasons the training department struggles to get the appropriate people is the ludicrously long duty months; some trainers have done up to 170 duty hours, while still being paid for considerably less "block hours"
A couple of examples of the disparity; (and this is only flying pay and allowance pay...assuming that each pilot has the same base salary)
1. Your roster....20 x DOH. 40 block hours. 85 duty hours. Flight pay 28AED per DUTY hour.
2. Actual 777 Capt roster (certainly an extreme). 3xULR, 1 x EUR, 96.9 block, 117 duty, flight pay 113AED per DUTY hr. (includes overtime)
3. Actual 777 LTC roster 2 x layover, 10 x T/A, 73.6 block, 108.6 duty, flight pay (including appointment allowance) 86AED per DUTY hr
Comparing 2 & 3, the 777 line capt has 15days off versus 10 days off for the LTC, works 7% more duty hours but receives 31% more pay per duty hour than the training Capt!!! (and 406% more pay than your 20 DOHs, despite only working 37% longer and having almost twice as many days off)
So, if you can follow the maths, the system as it stands is incredibly unbalanced.
Remember fairly recently when FLT OPS justified the increase in productivity threshold by saying that the old system didn't account for the amount of ULR flying that we're doing now? Well now we have a system that doesn't take into account the huge disparities between fleets, and even appointments within fleets.
The current system is flawed, and needs to be changed.