I just made something close to a Wondrich Aviation, although I left out the violette, because I currently have none (and prefer it that way), and I used Hayman’s Old Tom in place of Plymouth. One teaspoon of maraschino is plenty for me: the maraschino is clearly present, but the drink has not become—as @slkinsey put’s it—a “maraschino sour” (yick!).
The 1/2 oz of lemon juice, as opposed to the more “typical” 3/4–1 oz, is very interesting to me. The smaller dose of acid in the drink is instantly obvious in the taste, and takes me straight back to this discussion.
Same problem with the Jupiter and its Parfait Amour constituent. The drink either looks like dirty dishwater, or it has way WAY too much of the floral liqueur in it. Blue food coloring has been proposed. Unfortunately, we don’t get to ask Ensslin what he really had in mind.
Historically, I’m pretty sure grenadine was mainly used for anything but color and sweetening. In the last couple decades, we’ve been basically been trying to insert pomegranate syrup in its place. And yeah, if you want the color, you have to use fresh pomegranate juice in your syrup, or reach for the artificial stuff.