The Planters Punch

Here's my version of the Jamaican Planters punch.

The original - 

one sour

two sweet

three strong

four weak

Mine - 

2 ounces Coruba Jamaican Rum

3/4 ounce simple syrup

3/4 ounce lime juice

2-4 heavy dashes of angostura bitters

Build in glass and fill with crushed ice.  Swizzle till glass is frosted over.