sorry for the slow reply! vacation from work does that
i checked out your guide, pretty nifty, would have liked to have had it when i first tried tankpoints
re: my errors, at the time of posting this, i was using the second-newest version of tankpoints, because the newest had an annoying bug where i had to spam holy shield a few times, lest it wouldn't show enough block% on the sheet. the problem with that second-newest version was that agility was giving much higher estimates than reality. i knew something was off when agility was estimating giving over 2x as much dodge as, well, dodge rating, but i still regemmed out some defense gems just to see. ofc reality struck.
i did update to the new version that came out after this OP; this one's block% bug goes in the other direction (if i press holy shield, it shows me as having too much, haha). i decided that minor annoyance was worth having more accurate stats