The one thing I want to know is why does everyone think that all buff pilots are going to fly the B29 at 35k? I can tell you that even if I have to pay 200 perks per plane (600 for formation) then I'm only going to fly it at 20-25k as it has a decent defense. Everyone always cries that "oh no we shouldn't add that aircraft because it might fly high!". Let me ask you, how many 25-30k bombers do you encounter every night in MA that are ACTUALLY at 25+K? Another thing is this, for those of you that say the B29 should only be able to take off from Me163 fields then you can bet all B29's will be in the stratosphere. Why? If I had to fly 3 hours to get to target then I'm sure as hell going to climb as high as I can get. If the B29 were to be added as just a perk bomber that can take off from any field I doubt most of them would be seen above 25k. Most people just don't have the time or patience to fly that long or that high.
Now onto game breaking balance. The worst a B29 would be able to do is drop the hangers at a field, and guess what, if he's by himself then at best he's only going to knock out FH's for about 5 minutes because he can't hit them all in one pass. Besides the FH's the worst a B29 can do is knock down a bunch of strat, and I think most of us will agree that strat is next to worthless in it's current state.
In my opinion the B29 should be in Aces High as an ultimate perk bomber, but I will also agree that there are bombers that should be added in before it.