Caution noted, Alf, hence my use of the word 'limiting'. The day I find 26L at LGW limiting in a 737 I shall quit!
Fully agree about the use of excess speed as a 'buffer', and I have many times seen a raised Vapp interpreted as a 'target' which makes life unsettled again. I'm unsure about 'dual bugging' though - I'd much rather see a single setting which one then tries to fly!
Hudson - not dead yet
IAS bleed-back for me is, as I said, when I am 'comfortable', taking it to the ground where LDA permits if necessary. 99 times out of 100 you can 'feel' the way the shear is working, and some of those times the additive proves not to be necessary either.