My 2 cents on the updateNot An Issue
The grade plugin I use with VIP and admins. With enhanced hammer after removing the grades plugin it just didnt work right nothing ever worked like it used to I even tried it on my test server with players (testers) admin and default players and it didnt work ether it gave everyone the ability to upgrade with 1 hit or the hammer hit didnt work at all (with permissions) and for vip well it didnt work at all I'd rather just stick to what I have, it works and everyone is happy. After about 2 hrs of fighting with it I gave up. I even had other poeple reading the directiuons looking at the permission and ingame commands and they were confused (so now I know it wasn't just me). It turned me and my testers expeiance into a good time to get it to work right to pissed off not wanting to play anymore.
Even the permissions didn't work right or didnt even need permissions to use up down ect. I even wiped all permissions from default and admin and still gave permissions to use all... I honestly tried.
grant use permission, grant grade permission(s), profit. ENABLE AUTO GRADE IN CONFIG BY DEFAULT AND WIPE DATA FILE if you want to enable grading after manual upgrade without commands.