BOAC vs RAINBOE
BOAC wins my vote 100%. The IN speed is the OUT speed on 737.
Vref30/40 = V2 for F15 (approx), as Vref15 = to V2 for F1 (approx.).
RAINBOEs version is NOT what Boeing train for a S/E GA. Try that when hot and high and you die! To accelerate to Vref +20 in a GA is very very difficult, you will pretty much have to level off. That is not in compliance with ICAO PANS OPS which require 2.5%.
Also RAINBOE, you said, 'watch the pilot sweat trying to fly your profile', I'm not suprised 'cos its not correct and a perfect example of a chief pilot writing procedures because he/she doesn't have the necessary experience. Also I am 100% sure your Part B has slipped past the Flight Ops inspectorate who could not allow such a procedure.
Your version is ONLY correct in the engine failure continue approach scenario.
Sorry to be so direct but what your company is professing is dangerous at best and also sending out a poor training message here on the web and I'll end up having to re-train the guys who might believe your version.