I posted this over on reddit yesterday and it seemed to be well received so I figured Id share it on the actual forums:
I made this calculator to help me tweak my spirit generation setup. The ultimate goal being able to run with both my HF ring and Leorics Signet while still maintaining a good influx of positive spirit AND maintaining a 100% up time on TR.
Anyway, here is a screeny of the spreadsheet - http://imgur.com/XTgQ6
and here is the googledocs link - https://docs.google.com/open?id=0B16HGMLxB14Db3RIMm52Z0VxMVk
Also, keep in mind that this does not take into account the spirit regen that occurs as part of combat.
EDIT: I just changed permissions from "View" to "Edit" let me know if it worked or not please.