Ive had Tadao boards installed in 8 out of 10 of all my markers past and present, never had any problems with them whatsoever. Infact, the batteries have lasted longer in them oppose to the stock boards.
I'd have to disagree with this aswell. I have 5 tadao Oled board's in various gats right now and 2 led boards. Swear by them and never had a single problem!!!
i must have got a really terrible one then haha sorry was just my opinion but. i got it then it justed decided to die in a game one day wasent good lol