I agree with the comment that you have too much redundancy. I would not carry extra battereis, either. I prefer to put lithiums in the light used for day hiking and reserve it for that puirpose. If needed you shoud be able to walk all night.

I would not carry a SAM splint on a regular basis. Splints are among the easiest things to improvise. Same with triangular bandages. It would be different if you were going on a SAR excursion.

Evaluate your kit as you use it and prune ruthlessly. Be on the lookout for lighter alternatives.