Use a good set of headphones and tell what you think
Just confirms what my own ears heard from the 5-string HH basses I've had:
- they're thick sounding, much thicker than a jazz, but at a detriment. I found the HH, when in position 3, to have a good "bedroom" tone, but to get somewhat buried in a mix or my IEMs. Mids can definitely solve it, but for a two-pickup bass, I like a jazz better or even a bass with humbuckers in jazz positions. I always thought position 5 sounded closest to a P (where others seem to pick position 4), but in that video, it doesn't sound anything like a P - the jazz bass neck pickup sounds much closer to my ears.
- I like a StingRay to sound like a StingRay, just like I like a jazz to sound like jazz. For the StingRay, that means the big ol' humbucker in the sweetspot. It's perfection that way to me, no need in muddling with it, but I do understand the benefits others see in the HH model. When I had my HH models, I'd tinker with other positions, but always kept it on the bridge pickup. I found the differences in tone on a H model selector, much better as it gave me different flavors from the bridge pickup rather than different pickup combinations. I always found that varying my right had position on a H model was a better resolve than having another pickup to use.
- it confirms why, for me, I went back to playing jazz basses primarily. I love the StingRay tone, but the jazz nails everything I need it to. Out of all the StingRays I've had though - Specials, a first year '88, the ceramic 30th Anniversary version, alnico HH - my favorite is the one I currently have - an '06 USA SUB 5 with two-band pre. Just marvelous StingRay tone out of that one.
All this is certainly just IMHO.