But why do pacific salmon go through all these changes and die after mating only once, while Atlantic salmon can do the same thing but survive to mate many years in a row?

Laser testing lab!

I’ve got three 473 100’s and two 532 300’s running, so use the orange OD7’s.

It does occasionally catch on the inside of my pocket when I take it out, but usually it’s not a problem. And the extra grip is worth far more to me. I have literally never dropped my phone since I got one, and I can use my Pixel 6 Pro with one hand easily. I would never go without one.