Alex - I am not privy to the FCTM, so you have me at a disavantage. All I am asking is that IF you are going to go straight to Flap 1 then what speed are you going to fly?
As I understand it (and I do not think it changed with that amendment), as the flaps pass Flap 15 you need to be accelerating to VRef 30/40+20 from the Vref 30/40+5 you started with. What does the FCTM call for speed targets?
"follow the engine inop go/around proc" (fctm) wich says "use flap 1...."
- don't forget that this E/O proc. STARTS at VREF 15+5 which is the s/e approach speed, so you are ALREADY there (Vref 30/40+20). You are asking about engine failure on a 2/e approavch when you are a lot slower - Vref30/40+5. I think you are misunderstanding the advice given?
I suggest you read four trails again?