I'm sorry Norman, your post makes absolutely no sense to me. The routes are a mix of bmi's own work and LH wet lease. So the profit/loss/leasing costs/risk are not the same for each route , contrary to your sweeping generalisation. Since DLH owns bmi, the profits and the risk are all on DLH's bottom line surely?
If you want to split it up between parent and child companies surely wet lease gives very little risk to bmi; fixed income for leasing the aircraft, where's the risk?
Max