British or US bombers are a good idea depending on G1. If Germany went navy crazy you probably can’t afford 15 IPC that isn’t a ship or that doesn’t provide good defense for UK.
But I have played with a UK rd 1 buy of 1 bom, 1 ftr + and followed up with a US buy of 1 bom + (whatever else), and a US bom on US 2 as well.
I think Jen mentioned the added range earlier, and that is a good point. You don’t need to engage in an SBR campaing from rd 2 on, but it could be nice to have the extra bombers come mid game. B/c of the range you can station them in Cauc/Wrus/ or Mos and even deter a Japan landing in Afr unless they provide serious cover for their trans, which in turn could leave open the ability for the US to island hop.
Now if you get to rd 3 or 4 and you don’t need your bombers in another attack, take a shot at Ger with both UK and US even if you lose 1 of the 4 bombers you can probably do about 10-12 in damage right at a crucial time.