Hi All, It looks like, after getting out of it for so long, I will be undertaking some marching soon. My tuba has the marching rings but after suffering with a bad abck in the past I'm a little concerned. I wondered if anyone had any experience of the Tuba 'harnesses' such as Neotech. I know that they are more expensive but they could be better for me in the long term if it will save my back. Thoughts/recommendations greatly appreciated.