Mr Wizard appropriate negative commentary cannot be viewed as "stomping" or can it? Einstein once remarked the definition of insanity was to "Do something over and over exactly the same way, and expect a different result".
Technical questions should be sought the answer...
First by noting relevant remarks made in answer.
Then pursue those answers by whatever research means available. In this day and age this means the internet. The only quest is to differentiate comment from fact. Multiple agreement from several reputable sources should satisfy questions about batteries. 90% of what I repeat endlessly here about PbSO4 characteristics can be found these days on internet websites.
Someone with better access can research for a 15 minute video (You Tube?) Made by Concorde about the construction of their AGM. excellent manuals are available FREE download from Rolls & Surette and Concorde Lifeline.
BFL13 sir, with respect, have you downloaded and read one or both manuals? Been to the batteryuniversity.com site? There is an incredible amount of valid information waiting at the touch of a button.
I prefer to deal with the subtle idiosyncratic moods of the electrochemical spectrum. It does indeed frustrate me when I prove incapable of giving forth of basic battery rote. My lack.