Cool article. I need to pick up some dry vermouth and try to ... uh ... duplicate his lab's results.
Interesting that he found a sweet spot for final strength.
An idea from Dave Arnold's research: one way to reduce dilution is stir in a shaker tin instead of a mixing glass. Or, pre-chill the mixing glass by swirling ice in it until you feel the cold on the outside (or if you're Dave, swirl with liquid nitrogen). The reason is that a mixing glass has a much higher thermal mass than a tin, and so when you stir a drink in it, a significant amount of ice melts just to chill the (not pre-chilled) glass. So at any given final temperature, you'll get noticeably more dilution.
At Dave's bar, he tells his bartenders that they can use a fancy crystal mixing glass if they want, but they have to pre-chill before every cocktail. Most of them give up and just use a shaker tin. It's not that the tin or pre-chilling is inherently superior ... just that Dave has formulated his drinks for a particular final dilution and strength.
Same could apply with Wondrich's martini. If you don't have navy-strength gin, you might get into the right ballpark just by stirring in a tin.