Zar Petkov wrote in october 2003 an article about an alternative way of evaluating a bridge hand. He considered not only the honor strength ( hcp) but also the values brought in via distribution and controls : zarpoints = hcp + controls + A+B +A-D where A is the length of the longest suit, B the length of the 2nd longest suit and D the length of the shortest suit. The controls were counted as 2 for an ace and 1 for a king.
All argumentation, examples, and comparisons with Goren, Bergen etc. can be found in his recommended article: Never Miss A Game.
We map this on the MUTOS-system in the following way :
Zar can be more or less summarized by the Rule of 20 : the sum of the two longest suits + honor points >= 20.