I wasn't originally planning on posting any data on Kick Attacks and Empyrian Set Bonus until I was completely done, but it appears people have no clue on what the Rate of Kick Attacks are. I did a lot of testing during random times over the summer for 3-6hrs at a time. Was limited to only getting figures off of attacking Fortifications in Crawler's Nest, Eldieme, and Garlaige since Campaign enemies wouldn't attack me at those 3. Between not logging on very much becuase well, it's nice outside this time of year, and whether or not any of those zones were beast contolled, all my testing took about 2 months or so.
For finding basic KA II rate, and KA II + Merits rates I wore no gear with KA+ obviously. I used 17% Haste in gear(Black Belt + Byakko's Haidate) to keep my delay at a comfortable number. Using more haste made it hard sometimes to differentiate rounds as some would blur together, so I found this to be an acceptable amount.
-Kick Attack II with 0 KA merits. 2847 kicks in 21533 rounds= 13.22% with a Confidence Interval of .45%. So 95% chance Kick Attack rate is between 12.77% and 13.67%. Estimating KA II to be 13% Kick Rate.
-Kick Attack II with 5/5 KA merits. Expected to be KA rate +5%. 4229 kicks in 23097 rounds= 18.31% with a CI of .47%. Kick Attack rate is between 17.84% and 18.78%. Estimating KA II with 5/5 KA merits to be 18% Kick Rate.
-Kick Attack II with 5/5 KA merits + Useshi(3KA), Tantra Earring(1KA), Tantra Necklace(2KA), Tantra Hose(7KA), and Shura Sune-ate(4KA). Expected rate= 35%. 4683 kicks in 13476 rounds= 34.75% with a CI of .80%. Kick rate is between 33.95% and 35.55%. Estimating KA II with 5/5 KA merits and 17% KA in gear to be 35%. This 3rd test isn't really needed, but I wanted to make sure that +1 from gear was equal to 1%.
On to Tantra Armor set bonus. I wore Tantra Hose+2, Tanta Necklace, Tantra Earring, and Useshi for all tests of 2-5 pieces. I also wore a pair of Augmented Shura Sune-ate with KA+4 for all tests 2-4 pieces. Format for these is #rnds with 2kicks out of #rnds with 1or2 kicks, so has nothing to do with total attack rounds, just kick rounds. The set bonus allows a 2nd kick during a round that the Kick Attack Job Trait kicks in.
Getting sick of typing so much out which is part of the reason I don't share my findings always, so going to start simplifying results.
-5/5 Tantra Set= 1351/13896= 9.72% with a CI of .49%. Estimating Set Bonus with 5/5 Tantra to be 10% of KA rate.
-4/5 Tantra Set= 798/11495= 6.94% with a CI of .46%. Estimating Set Bonus with 4/5 Tantra to be 7% of KA rate.
-3/5 Tantra Set= 354/8573= 4.13% with a CI of .42%. Estimating Set Bonus with 3/5 Tantra to be 4% of KA rate.
-2/5 Tantra Set= 135/7249= 1.86% with a CI of .31%. Estimating Set Bonus with 2/5 Tantra to be 2% of KA rate.
From testing we see that compared to other Set Bonus, it follows the 2,4,7,10 order much like RDM and NIN, however even at 10% it actually equates to a pathetic 2.5% overall rate when wearing the standard 90MNK equip(KA Traits+Merits+Tantra Hose=25% KA). So for anyone who has been confused by me referring to set bonus being 10%, it is 10%, but not of all attack rounds, since it's based off a secondary factor such as KA.