Nowadays, solid tungsten is the mainstream for the heads of sea breams. However, by changing the head to red or orange, it suddenly becomes more appealing. This tendency is especially noticeable in fiercely competitive areas such as Akashi.
Even without replacing the head, you can quickly tune the head according to the situation just by pasting this "Tainome"

UV light irradiation image (top left is glow)

Kabra head pasting example ∅14mm: Red/Keimura, Newsy Black/Keimura