I have a recipe for a Raspberry Weizen that I would like to try out but would like to use some recently acquired blueberries instead of raspberries. The recipe calls for 5-10 lbs. of raspberries for a 5.5 gallon batch but I'm thinking since blueberries are smaller that a greater weight is needed for them to achieve the flavor in the recipe. This is where I could use some help. I'm not looking to clone a Wild Blue, way too much sweetness there, just looking for an easy drinking beer with a subtle, but noticeable, blueberry aroma and taste. Any help is appreciated!