I am a big fan of Maven optics. Their binos and rifle scopes are exceptional in my opinion for the price compared to other big brands. The spotting scope is top-notch as well but does fall a little short in comparison with the binos and rifle scopes.
Kifaru makes a heavier pack but it is a workhorse. I love the versatility/modularity of what you can do with it. Options are endless.
I am not a fan of replaceable blades. However, I do carry one but solely for caping if anything is heading to the taxidermist. A good fixed blade with the Worksharp field sharpener for quick hair-shaving touch-ups.
For first aid I use a custom put together one with the basics.
I have occasional cramping issues and the Wilderness Athlete and Hammer Nutrition supplements have really helped me take control of it and not effect me while in the field.
Huge fan of First Lite merino. I have several Woolrich sweaters and I wear one almost every single day in the field.
Bergara barreled action 6.5PRC on an AG Composites. Custom 28 Nosler with a Proof barrel, Mesa Precison action, trigger tech primary, AG composite. Both topped with a Maven RS3