Very fruity and well-balanced rather than dry or sweet.
The recipe previously on this page was in line with that in the 1977 Jones' Complete Barguide:
50ml...
The version is Ted Haigh's Vintage Spirits and Forgotten Cocktails is 2 oz. gin, 0.75 oz. sweet vermouth, 0.75 pineapple juice, 2 tsp. Curacao. That version is a 5+ stars in my book. The only reason I don't return to it as often as other stalwarts like the Manhattan and Martini is that I don't have pineapple juice and Curacao in stock at all times.
Many thanks, Clarence. I've adopted Ted's recipe above. Having just made both versions I feel there's a middle way that I look forward to finding with further experimentation. I can see bitters and/or saline solution playing a role in future renditions.