Them neck things look good and great if they help, but there not for me. When the neck starts to ache at the back, I use the old fashioned way and just tilt it forward for a minute, a few circular rolls of me head til it stops cracking, and carry on.
Am having more problems with me shoulders than anywhere else, scrubbing scrubbing and scrubbing some more getting 8 years of moss off.
The thick stuff comes off easy it's were it's gone black underneath and like a carpet, virosol doesn't have longer enough on it before it's a scraper on a pole time