Hi jenny,
no problem doing my best to help you helping me 😉
I actually forgot that the sample rate was up to 60 Hz, unfortunately, even setting the framerate down to 0.005s (200 Hz) the problem persists.
I already tried switching between slow and sensitive, both are giving me inconsistent results but i’m quite confident on the number and the veracity of the Begin-tagged fixations when I use the “slow” mode. Getting the time between two Begins should work for me by now (subtracting the saccadic mean time and expecting the user isn’t doing any smooth pursuit). But I am still here if you want me to try something or if you need more infos.
I have downloaded the v2.0 beta of the Unity SDK but didn’t have the time to test it yet. I’ll provide infos when I can.