I generally prefer bitter, herbal profiles.
But in this cocktail, it's better to switch the proportions of Bianco and Cynar. Too much Cynar will ruin the drink if you're using a good gin. If you're using a cheaper gin like Beefeater or Gordon's, stick with 22 ml of Cynar.
I agree! Went for 50/50 on the Cynar and Vermouth the second time, which improved the balance in my opinion. Cheers!