About the bonus stat range in yellow tools, Hard version of brother TI drops the red gourd. It can give higher bonus stat compared to others.
Reforged my red gourd to have it +79 att/+78 nin.
Others that we can get mostly goes upto +60 in att/nin. Most tool gives anywhere between 40-60 bonus stats in att/nin.
Def/res bonus stats are rare in my experience, but they tend to stay around +45 max or so.
While I agree that reforging is low priority now, but if any of your tool is lacking in HP/Att/Nin - reforging them to have those stats, gives quite a nice power boost. After lvl 15-16 , it takes a lot of tools to level them up just 1 level (which usually gives +10 att/nin or +8 def/res or some hp). Compared to that, using 6 tools to reforge a gear gives more benefit.

This post was last edited by Sourav at 2017-2-8 13:27