well, i do have 11 SSR kami currently (and somehow got 4 of echidna and all 5 of huanglong along with other gacha eidolons scattered), and only Sol is from the miracle ticket
but 3% chance does pretty much calculate to about 1 out of 33-34 attempts so maybe half that is the rate of getting any SSR kami... which would be about 1 out of 67 attempts...