Just add those extra points of compatibility to those matchmaker web sites and increase the odds of HD/HD and LD/LD matches. I guess the only drawback is lots of guys would be left out in the cold, so to speak, since there is a higher percentage of HD guys than HD gals. I've seen the rough estimate as something like 80% HD men vs. 40% HD women.
Hmmm, that's 50% more HD men than HD women. Does that explain the 50% divorce rate?
The real solution still seems to be a different approach to sex ed for the gals to become comfortable with their sexuality and for the guys to become better, caring lovers.