If you like to experiment, looks for ways to fail quickly and in small increments.
One way to do this with dry hop combinations is to dry hop in half gallon canning jars. All you need are canning jars and a scale that weighs in .1 (or .01) gram increments -- about $25 to get started. Plus hops . Plus freezer space for the hops you don't use immediately.
Fill the jar to the 40 oz (five cup) level, add the hops, use the lids (held loosely by the cap) as the "air lock". Three jars use about one gallon of beer. For each canning jar, the result is three bottles which you can sample. Typically, I'll sample two, four, and six weeks after bottling.