Playing with substituting blanco for rosso vermouth in a "Perfect" Martini recipe, I found it rather sweeter, even using olives in place of orange rind. I should have tried this recipe instead - and I will - as it seems to be the right "perfect" martini that still looks like a martini! ;-)
OK - tried this without lemon twist using stuffed Spanish green olives (they're easier to get here and look fancier) and it's a lot more balanced but perhaps still a bit on the sweet side? Definitely a recipe I want to play around with more though (6:4:1/3:2:0.5 perhaps?) but definitely more what I expected of a "perfect martini" than the rosso version, nice though it is.