I think that in the TA, the bomber should be given the option to to start at 5,000ft, 10,000ft, 15,000ft and 20,000ft.
It takes no skill to auto climb to a chosen altitude only to have 30 seconds to drop then just land. I don't find the point to take a 40 minute flight to climb and get to your target to have only 1-2 drops.
this time is more effective if we start at say a chosen 15,000ft, fly to a target and focus on your training. The same 40 minutes is needed for 4 seperate runs at a chosen altitude instead of 1 with time waisted. Efficient time for training is better and real life simulation is better in the MA.