If it's too heavy, for instance, your helmet can slow you down and put additional stress on your neck muscles
Heres a checklist for things every angler needs to have in their tackle box
Any water that has found its way into the reel mechanism can freeze in sub-zero temperatures, causing the reel to become stiff or completely inoperable 11
Because I'm a physics nerd, I made a graph of the position of the balls as a function of time during the collision, which illustrates this nicely: You can see that the left ball comes in at a more or less constant speed, and comes to a sudden stop, while the right ball starts at rest and starts moving just as abruptly
Similar to duo-lock the small swivels can handle a lot of weight, so don't buy massive flashy ones
So it is important also that the tip action to have enough power to set the hook deep and secure