I have been working on this project for the past few days and I think it's in a final-enough version that I can release it for others to try to use. I'm sure there's still some minor math errors here and there but it works very well for the time being. The whole reason I started working on this was so that I could figure out when I was going to be able to break t15 4 set considering how well it scales with gear. Basically all the spreadsheet does it take your SP, Crit, and Mastery and show you almost exactly how much your spells will heal for on average and per tick. I set it up so you give it some info from world of logs - how much you healed for total and what % of your healing each of your 5 main heals (excluding shrooms) healed for. Using all of this info it shows the total % increase each spell will gain/lose from the stat differences you put in and how it will effect your total throughput weighing the value of each spell through the percentages you gave it from WoL.
Hopefully it is set up in a way that most of you can learn how to use it rather quickly, if not then feel free to ask any questions you have here or whisper me in game. Any feedback is much appreciated and I hope you guys enjoy it as much as I do!
https://docs.google.com/spreadsheet/...ISGJabVE#gid=0