Some of the folks I hunt with have tried the etrac and just flat out can't stand the "tunes". They were a total surprise for me coming from a White's calliope but I used the stock program in a not so trashy spot for a few days and dug a hundred or so targets and then started to click with it. I still prefer it to the CTX. I think it's essential to have a volume control on your headphones , even if it's an after market in line type. There are really three controls that modify the volume of what you hear , threshold level , volume limit and volume gain , and the manual does a poor job of explaining their functions. I was surprised at how low they have to be adjusted to make a significant changes in volumes. Different locations may require volume changes because of the ambient noise level and it's kind of a pain to do it with the machine instead of the headphones. Works best for me to get them comfortable and then vary them all together with the headphone control.
I work 3rd shift and that post was at like noon lol my brain not work good.....