Sorry again. Can I ask,
1. What do the symbols in the red boxes stand for?
2. The symbol in the green box is the weight of the tripod right?
3. And the symbol in the blue box is the weight the hook can tank?
4. Came across an article saying that the fewer the sections, the better. Is this true? Convenience aside, any other reasons?
5. Dumb question but, it doesn't matter what ballhead right - it fits into all DSLRs generally? I'm using a D5300.
*Sorry there's some formatting error. The second image is the one.