Hello.
I have a suggestion that, in my opinion, will make transitions between tiers much more smooth, and that is fine tools. Like "Fine Yew Quarterstaff", "Fine Iron Mining Pick". These tools would have their skill requirement increased by 100 compared to normal tools, but their cap would be 100 skill points higher than the optimal skill for that tier. For example, a Fine Iron Mining Pick would have a cap of 525 skill. To compensate, the skill cap for normal tools would be adjusted to match the optimal skill.
The formula for these could be dropped by humanoid/undead monsters, like the fine weapon and armor forms do, or they could be received as a crafting quest reward, upgraded from normal tools with some sort of resource, maybe a drop from an elemental corresponding to the type of resource used to make the tool (wood -> treants; stone -> stone golems; metal -> metal golems). There are many possibilities.
What does everyone think about this?