I'm going to order a custom Shavemac with silvertip hair. I just don't know how long I should make the loft. I have 6 soaps 1 cream and only bowl lather when I use the cream the rest of the time I face lather. From searching the board a good loft length for face lathering seems to be 45-50mm. Is there any real difference between a loft of 45mm or 50mm?