Sending a strategic bomber and/or a tac bomber to bomb airfields to prevent a scramble that may or maynot happen, really spreads the Luftwaffe thin in a turn where there are a lot of must have battles going on for Germany. I recently accomplished sea lion without attacking sea zone 110 in G1 and it gave me good odds everywhere that mattered without risking a single aircraft (much needed when the troops land in London).
Yes, one sub can reach it and that one should be moved there. Combine it with a massive move to Carolines and from there you can pick Hawaii, most ANZAC territories, most of DEI, Phillipines, etc.