I learned recently that 617 sqn allongside it's compliment of Lancasters had a small number of Mosquitoes for target marking. This worked so well that the USAAF gave 617 a Mustang for target marking, which was also a success.
I also learned that tallboy and grand slam bombs were designed to be dropped from much higher than the Lancaster's 16,000 odd ft.
So how would it be possible for the USA to gift a handful of B29s for 617 sqn to use? What sort of impact could this have on the war?