CGM might actually be helping. Dichondra is very dependent on seed, so when old plants die, the new seed is what replaces it. CGM should interfere with new seedlings taking root, so there you go!

I have the 1st one and the last one at times ,I pull all my weeds up by hand or a pair of pliers,to get a good grip on the root.The 1st picture weed is hard to pull out because it's thin like hair.I just go around the yard before I mow and pull out any weeds by hand ,but now that it's July I really don't have any weeds in my yard.

with all the rain now i cant even see any weeds. just really tall st augustine, in some cases a foot and half tall. places that were all dirt are now all grass.
and im guessing that CGM must not affect st augustine, since they populate via runners and not seed?