PBA & others – If you don’t eat OU, then you can’t eat Vaad of Balto. OU is more Machmir in Bishul Acum. Vaad of Balto. holds using the glow bar is enough, but OU won’t be Somieach on this Heter. Also Tarkitor Rov, I think they had a discussion about it here in the CR. OK & Chof-K – many people have Taanos on also. And to say all these Av Dak Hechsherim aren’t Someiach on the main guys is patently false. Why? Because unless they have Chemists working for them – how do they know what is inside all these chemicals? (And chemical ingredients aren’t just a few ingredients inside food products.) They don’t. They are Someiach on the big guys.
So if you want not to eat OU – don’t eat anything processed – do like some do on Pesach.
I personally eat almost any Orthodox Hechsher – “Aid Echod Neeman B’issurim.”
As far as Timtum Halev – I already have my fill from the Net. (;0