I can try Mumble, I have my macbook here and the headphones will work with that too. I could hear you fine for the first couple of games but definitely by the last 2 or 3 games it was hard to hear you. Maybe the batteries in your headset were getting weak? It was weird.
Check the history on your stats above, you jumped from a skill level of about 100 to 200 so chances are the next game we have will be against better players!
Mumble would be useful if there’s more than 4 of us online at the same time. Must look into that.