HOI4 BBA - How Should You Build Your Strat Bombers

Lets talk about strat bombers and whether they are good now. How should you build your strat bombers.
I'm going to stream tonight (day of release) a strat bomber only game (maybe with heavy fighters) as the USA for some fun. I'll post about it in the community tab but the stream should start about 5 hours after this video goes live.
Twitch.tv/71Cloak