Can someone "splain" to me how to bomb a solid shaving soap? After months of heckling the Hubby to try wet shaving (he's a die hard electric razor guy) I finally got him to try it...hey I needed a tester! He really likes it and now wants to try a menthol soap. I haven't made any yet so I suggested "bombing" it. He's been face lathering. Do you just add a few drops of a menthol solution to the top of the soap before lathering?