I had terrific shoulder pain due to arthritis. I had used a wide, padded leather Levy, then went on to the Neotech, but finally found my answer in a Slinger Waist Strap, which I've been using since last November. I changed the mount a few times and finally settled on the lower horn mount UNDER the lower horn and the end mount about 1" above the standard strap pin point. I use flush mount straplocks and have set up three of my basses to use this strap...my 5 string Variax, a MM 5'r knockoff I built and a Steinberger Spirit 5. Having NOTHING on my shoulders feels fantastic. I had trouble making it through one 4 hour gig with the shoulder pain I had, but now, multiple nights of 4 hour gigs are no problem.
At first the bass sat slightly lower than when I used my conventional straps. After moving the mount to under the horn it sits almost in the same place. It took a couple gigs to get used to it, but now it feels just right. This strap is not for the portly or paunchy (which I used to be) but I'm not skinny and it fits great.