Wow amazing shot fluff~

Thank you ! <3

Very nice! Handheld at 250ss at 750mm equivalent? You've got a steady hand; even with the VR that's impressive! Beautiful bird, and great composition!

The active VR is really impressive, i'm shocked on how perfect it stabilizes the sight. The only problem is the weight of the lens, it becomes really uncomfortable after a few hours walking with it (Lens 2.3Kg + Camera 0.8Kg).

Dang, that is some weight!!! My new system is a bit heavier than my old one, but I think its only ~2.5 kg total... (Sony a99 II + Tamron SP150-600mm f/5.0-6.3 G2) I usually carry my tripod and a couple other lenses too, so that adds some weight. Upgrading my camera strap to one thats a bit wider and padded helped... a little. XD

Oh yes I understand, weight is always a certain problem with telephotos.
I think I will buy soon a Blackrapid camera strap. They seems to be really comfortable to use with heavy setups:
https://www.blackrapid.com/delta-ca.....a-sling-black/

That looks like a very nice, heavy-duty sling! I'm not sure if you've heard of Peak Design? If not, you should check them out. I own a Slide and a Slide Lite camera strap, and I've been very happy with both. They use an anchor system so you can attach your straps to several different points on your camera that allow you to quickly move the strap around, or remove it completely, depending on your current needs. You can adjust the length of the strap really easily with one hand, and you can make the strap very short, which I've discovered is useful when hiking with a long lens. (The end of my lens is usually down by my knees somewhere, and I'm always afraid I'm going to hit it on a rock... so I keep my strap as short as possible until I'm shooting.) The Slide is pretty comfortable with my long lens. I have never used a Black Rapid sling tho, so I can't really say how they compare...

Thanks for the advice =) I think I would prefer the Blackrapid because the strap itself don't move when you want to raise the camera to the eye. The attach slides around the strap. Depending on your clothes, it can be more comfortable I think ?

Of course! I watched a video review last night, and it looks like it has some nice features. I am a little curious to try one myself, you should let me know how you like it! The mesh padding looks so comfortable and breatheable...