Yes, Galaxy on the hot side is puzzling and a concern for me. just done some quick calculation there based on a20L batch and have gone with Azzaca 5g/L, Mosaic and Galaxy 7g/L for an example
Galaxy 140g
Mosaic 140g (I'm using Lupomax so 25% less dosage is 106g)
Azacca 100g
50g of each in a...