"Way2slow" this is what amazes me about people like you, you come on here claiming to correct someone's words "that are totally wrong" and you are getting your info from a friend or something you read from a manufactures spec sheet. You should've just left with your last comment about erasing your posts and keeping your mouth shut. It really doesn't require a whole lot of effort, but i guess for someone like you (mr 1900+ posts of mostly negative *****) that's spends a good portion of their day TROLLING around these forums claiming you know everything and everyone else on here that's giving advice is wrong, that would be life threatening for you.
I know US Battery very well for starters, they are a very small manufacture that deals more with a specialty product ie, mostly golfcart, scrubber and a few marine batteries. We actually used to sell them a few years back for probably over 10-15 years. They are a lot like Trojan which I'm sure you've also heard of. And these engineers and other manufactures you speak of are the very people WE work with day in and day out. Ever heard of Johnson Controls? I'm not a salesman in some retail store trying to convince everyone on here to buy interstate, I could careless actually. I sleep just fine every night knowing what's in my boat works just fine but as far as the next guys problems it really has no affect on me, however when someone asks I'm gonna tell them what's the best. (And no that's not my opinion)
If you're gonna do a little more research to come up with some long drawn out post about RC or how AGMs just suck, save it. You're just making yourself look silly.