I've done everything in this post.... I can only get 12 usb Erupters out of 18 to show up using the terminal commands in this post. Also now machine works with just -S all as was mentioned and I get the same result.

I'm running a mac mini, BFL 5gh and 18 Erupters on 2 powered usb hubs.

What am I missing to get the rest of the Erupters to mine?

Macminer is awesome!