I see the Jazzlab holder more often than a Just Joes holder here.
Build Your Sax Strap - Just Joes Sax Gel Strap
Both are quality made.
So why the preference? IMHO, heat related comfort. Honestly I’ve never had a Joes on. I really should try one. Especially on a warm or hot day to be fair. Haven’t thought about it until now.
Both are designed to take the load off of back your of neck. Or at minimum the contact area. The Jazzlab placing the weight on your shoulders. Joes ? A bit of both ? Dunno 🤷, can’t say !
I will say I don’t care for anything around my back of neck. I know from my years of backpacking experiences. I don’t like the feeling.
The Jazzlab holder places the weight on your shoulders when properly fitted. That’s the issue. Consumers often fail to follow the instructions on fitting. The shoulder blade arms are adjustable ! Have someone help you conform these properly. This makes huge difference. I’ve also had additional comfort by adding auto seatbelt shoulder strap pads. This in use with thin garments like T-shirts on warm days.
All said, the abdomen support isn’t annoying in most any position to me, but yeah, it’s noticeable in adjustment. This in sitting or standing. Just find your personal preference. A shoulder and tummy position you like most. Standing up or sitting.
The purchase includes an extra rope. Why ?? Also dunno 🤷 long term use ?
Non XL size/ adult. Alto has reasonable adjustment. Tenor, still room to extend. Bari ? Dunno 🤷
C Melody 😇.