I used Simon's ratios and found it to be a very nice drink! I felt that even with the Suze being the forward flavor that it did not dominate and the whiskies, Montenegro and lemon juice all came through.

One thing I might change is just doing one type of whisky. I do have the Abasolo corn whisky and that might sit just right in this drink!

Out of rye at the moment, so I just made this with double the bourbon and replaced the rye measure with a half-measure of a smoky single malt. Also halved the Suze (I do love it, but it's rather domineering). The result was reminiscent of a boozy whisky marmalade - very nice, it'll do until I get a restock!

I made it with the original equal parts proportions, using Redwood Empire Lost Monarch as it already blends bourbon and rye. Overall I agree with Caspian Berggren's assessment below. I also added a couple of drops of saline about halfway through, which balanced out the herbal character from the Montenegro with Suze's earthiness.

I can certainly see where the cocktail creator got the Paper Plane notes from. This is like a Paper Plane with the earthy notes from Suze and the rye. The Montegro replacing Amaro Nonino works fabulously. Is it better than a PP? No, it isn't. Is it a good replacement when you want something darker and different? Absolutely.

As other commentators noted, a really interesting mix of bitter and sour but with some depth from the Montenegro and bourbon…. It’s also a lovely colour; perfect for a NZ autumn

I'm always hesitant with recipes with Suze in because on its own -- to me -- it's so bitter that it feels like it'll completely take over everything. Not here - it's definitely a Suze cocktail but it's perfectly balanced.

Original recipe is quite good, my wife and I are big fans of Tequila and Mezcal. Try Blanco Tequila instead of Rye and Mescal instead of Bourbon. You won't be disappointed.

Made as written, loved balance of bitter and sour. Big Suze fan, so it speaks to me

I tried the original, equal parts version first and found it a bit too sour. Will try again reducing the gentian and the lemon as suggested by Simon

Perhaps I’m a boozy philistine, but I find the original, less “approachable” beverage recipe to be more enjoyable.