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go to starshaving.com they have a cheapstrop. And if you have more money buy a better one.
Cella is a good choice for soap. inexpensive and provide an excellent Lather.
What concerns you brush, use...

Let your razor honed by a pro like lynn, max ect.
Once you know how sharp he has to be, you know how sharp you have to make it yourself.
Make Good Lather from a good soap or cream, not the foam...