i am looking for soft bristles that hold alot of water and produce a good lather. the main emphasis is on soft bristles. do you think i should go with a saville row 3230 or the omega 6215. they are both supposed to be silvertip. i like the idea that the saville row is a larger knot size because i will use it to shave my head but the cost is attractive on the omega. thanks for your input.