I am looking to buy a new shaving brush have been using a boar brush that was belonged to my late father. I have heard getting the right shaving brush will depend on what type of shaving cream/soap I use. Is there a difference between Boar vs Badger brushes if I use a Proraso soap or Proraso cream for shaving? Or is it just a lot of hype from the brush sellers looking to sell their products.