@sicular I know I’m a couple years late to this particular party, but I just wanted to express my surprise and disappointment at how you were treated here. Your question made perfect sense. It is somewhat unfortunate that the oldest version of OS X compatible with the HX Stomp is 10.10, but why people felt the need to berate you is beyond me. I hope you’ve since been able to get the HX Stomp working to your liking, even without the software, or that you’ve found a suitable replacement over the last couple years.