Incorrect. Block actually increases in increments of 10%, in-game description is wrong.
4/5 block is necesarry for about half the shields out there, and considering you won't have 100 block until late game it is worth considering taking the last perk to reach the block cap (85%). At 60 block skill with 4/5 you'll at the very most have ~82% block, but that's with a Daedric shield.
Incorrect. Block actually increases in increments of 10%, in-game description is wrong.
4/5 block is necesarry for about half the shields out there, and considering you won't have 100 block until late game it is worth considering taking the last perk to reach the block cap (85%). At 60 block skill with 4/5 you'll at the very most have ~82% block, but that's with a Daedric shield.