I love my open-dyslexic font on my Kobo. I read a lot, usually many hours while in bed late at night. I don't think the font helps with my reading speed at all, but I just feel like I have less fatigue and I have to reread words and sentences less often (I often mistakenly assume a word or few words and then get confused why the sentence made no sense).
Anyway, I just saw a demo of bionic reading and it feels weird and fast. I instantly was gonna pay for a font, but according to my research it doesn't really work on Kobo. The fonts just left-weight letters, but the actual bolding for eye-focus points has to modify epubs themselves. I guess on the xteink x4 (which I was thinking about buying) you can put custom firmware on that supports render-time bionic reading, but Kobo doesn't allow anything like that.
So before I buy anything or waste any time converting epubs, I was wondering if anyone had any experience with both, and which they prefer? I think theoretically I could modify an epub with bionic reading and use my open-dyslexic font at the same time... I guess there isn't much research suggesting either help readers, and bionic reading doesn't seem to have been tested for dyslexics specifically at all.
I might give it a try tonight either way. I'll report back if I do.
It looks horrible, but it works really well