That's all understood but you didn't answer my question in terms of pounds shillings and pence. Bottom line is that if I plan to fly somewhere with 20 Kgs of baggage I shan't be going RYR. I'll most probably find just as cheap a flight with a major or other where I won't be charged for my extra 5 kgs. I respect your mathematics, but you are approaching the issue purely from that point of view and not from the customers' point of view. The point I'm making is quite simply that as a passenger I would think twice about using an airline that restricts me to 15Kgs checked baggage, unless I'm travelling light of course. Likewise, I won't fly on airlines (not talking RYR here) that restrict my carry-on baggage to 5kgs.