icepac I've seen what happens to you @ altitude Sir! I wouldn't be in a BIG HURRY to take on our ENTIRE Squadron...........
Stick to one or two............. that way you have a chance or making home alive..... 
<S>
It's not easy to climb to b17s that travel at 312mph at 32,800 feet.
In that scenario, my only shot is a single run from dead six.
I fly higher now so my closure rate is a lot faster.
Feel free to test this.