If you felt that that the Delong brush was wasting too much soap my recommendation would have been to get a smaller "silvertip" brush with a smaller knot and loft. That way you do not waste any lather. I really think that a Simpsons Chubby 1 or Rooney Style 1 size 1 would have fit your bill.

These brushes will cost a bit more up front but will last you much longer and hence are a better value.