And drive through dead six to get blasted.
Exactly. The fraidy-cat astronauts will be safer than ever before at 29,990 ft .
A better idea would be to decrease bombing accuracy as the altitude goes up.
Make bombs have an incrementally greater dispersal for every 1k in altitude, starting at 15k. That's assuming there is a dispersal rate and if there isn't, there should be.
15k = 90% of current dispersal rate
16k = 85%
17k = 80%
... and so on.