Sorry guys, been meaning to post but i've had trouble ever since i recieved the ST50. It had over a dozen pixel issues, and my retailer wasn't acknowledging it as faulty, neither did Panasonic. Spent more time talking between all parties than actually using the damn thing, but since its all cleared up and i recieved a refund, i thought i may as well post my impressions, however limited.
First off, fantastic TV that feels quite responsive for gaming. Compared to most HDTVs it feels extremely nice, however i can safely say that it does indeed lag, it isn't 1f of lag. Rather i believe the lagtest figures are quite spot on, however this is all my impressions after fairly limited time with the TV and fighters that i hadn't played for quite some time. For the most part, it felt pretty good, but as i was using it i swapped quite often between my monitor and the ST50, and that's when things felt especially off. I'd have to adjust my timing slightly for specific things.
This is with limited time with the TV and gaming on it, till i pick up the TV again in the coming holidays. But i'll say that gaming on it was as good as it gets on a HDTV, its very responsive, but honestly considering the type of games, if played competitive at all, i feel we should just keep fighters to CRTs and specific PC monitors.