I've used a Sun-Sniper sling strap, attached to tripod mount with the Joby Ultraplate, for the last 4+ years. Absolutely NO problems with it working itself loose. I can mount the camera straight on to my Arca-Swiss tripod head with the strap still attached.
Sun-Sniper has shock absorption integrated into the strap, along with a steel cable to deter cut & run theft.
I have used it with my DA40 XS all the way up to a Tamron 70-200 & Sigma 50-500.
You can purchase a belt mounted clip from Sun-Sniper (or just use a carabiner) to keep the strap and camera from swinging around uncontrolled (via belt/belt loop) during hiking/walking or between active shooting.
Honestly, the only time I have removed the strap from the camera was when I added the Ultraplate!
Just another note: I have been on disability for the last 13 years due to two back surgeries. I have been fused from L4-S1 since 2004. I also have permanent and active nerve damage in both legs and feet. So while I am unable to undertake epic backcountry adventures here in Colorado, the small jaunts and hiking trails that I am able to take advantage of, are made eminently more comfortable by using the Sun-Sniper sling strap.
Last edited by K(s)evin; 01-10-2016 at 11:33 AM.