You might want to try a completely different style. Perhaps one of the Rums with a more Whiskey like character will be a better fit. Mount Gay XO or OLd Cask and Pussers blue or red label come to mind.
IN addition to the two mentioned above here are some quality Rums that represent different styles;
Barbancourt 4 star and 15yr
Appelton 12 ans 21yr
English Harbour 10yr
Clement 10yr and Curvee Homere
Plantation Panama Rum
Matusalem Gran Reserva or 15yr
There are also two that were supposedly designed as full bodied mixers but are very interesting sipped neat if your taste runs toward the bold side. Scarlet Ibis and Smith and Cross traditional Jamaican Rum. If they are too bold on their own they really do make killer mixers.
There are plenty of more esoteric and obscure rums that are good quality pours but the list above should get you started.