Strawberry flavor is notorious for being difficult to get into the beverage. I once made a 5 gallon batch of mead with 18# of fresh picked strawberries in it. The aroma was amazing and you could smell the strawberry from the glass at 5 ft. away. Tasty mead but very little strawberry flavor at all. Also if you try to just add more strawberries to account for their subtlety you will be adding a significant amount of water to your beer as they are mostly water.
I wonder if you'd get more strawberry flavor by putting them through a blender, strain out the water, freeze the remaining strawberry flesh, and then add that to a beer/mead?
Never done this, the idea just popped into my head.