Been running the 1257tg and 1258tg in my TLR 8b 2.0 for about 2 months now and I love them, now I'm trying out a 1256tg in my 8t 2.0 and so far so good I'm gonna save my new Hitec 7950th for now, I can live with the noise that it makes my o.s. engines drowns them out.