Paul,
Email your telephone number to me at travlin_easy@verizon.net and I'll be glad to give you a call and provide any information I can. For me, the headset mic was the best thing I've done in decades. I love the freedom it gives me while performing, don't have to search for the mic while making changes on the keyboard, provides me with constant eye contact with the audiences, and the vocal quality of top-notch.
Now, I must say that headset mics are not for everyone, and it does require a significant amount of vocal control. However, once mastered, you would never go back to a handheld mic.
Cheers,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)