STMT: Hardgraft.com - in their 'camera' collection. The perfect strap, handmade in Italy from beautiful Italian leather and German felt. A bit more expensive, but unbeatable, and exquisite packaging too.
£130 is "a bit" more expensive?It's actually almost triple the price
I do not think this strap was designed to be put to the canera bag. It seems to be this strap will be used best for the cases where you take no camera bag or lenses but one body + lens only. Say X100T or X-T1 + 23mm. Put it over your shoulder and off you go.
Turnstyle 10 fits my Nikon D600 with 24-85mm attached + any one lens such as Nikon 18-35G or Tokina 100mm 2.8 macro with some room left. It's the first sling bag that I could actually use without my shoulders killing me. The fact that it's left-shoulder sling if preferred for my personal use. You can also fit Nikon D600 with Nikon 70-200 f4 but that would be it. It's not really workable as waist bag but my be used as such if your shoulders are tired. Another advantage is the build-in rain cover which is a nice addition. Lobe lots of space in front for your wallet and phone and zipped pocket for small tablet (ipad mini will fit).
I do have 3 Kata backpacks which are grate but since those are bulky I noticed I was not taking my equipment out. While with this one it's so small I grab it every time I'm out and about.