Just to be clear, while John may have 'quit' www.johnbridge.com (which I find hard to believe since he loves to post things), they banned him, and he cannot log back in. As a result of whatever ticked him off, as a result, he throws darts anytime he can. There is a huge cadre of working, award-winning tile guys AND women over there, glad to help, regardless of what John says. For years, the shower and bathtub section of Terry's site was related to plumbing questions related to those rooms, not tiling, which John wants to be his personal domain...he hates any competition. Terry approved of people recommending that site for tile expertise, regardless of what John touts, and the people over there would suggest people there come over here to get expert answers to their plumbing questions, a good working relationship - go where the expertS are (i.e., more than one). This is the reason I link people to that site, to get a clearer choice of industry approved methods, not those that John decides is the only way to do things. As opposed to what John alludes, there are lots of people over there that can help you build nearly any type of shower, and the information in their library covers most of them, and there are people that have there preferences for pretty much all of them, so lots of varied experience. The TCNA handbook is several hundred pages long, describing the approved ways to build things or cover things with tile...each one has it's own cost/risk/benefit. John would have you do it his way, and the industry and experience of millions of installs over many years, that there is more than one way to do things and not have your world fail. The skills required to accomplish the task in any approved technique needs to be weighted according the your cost/benefit/risk tolerance and skill level. The task is detailed, but not hard, and there is more than one place to get information, and there is more than one right answer...John just doesn't think that way.
I freely admit I don't tile every day, but have some experience in more than one area. I have had some training, and have worked in highly technical areas most of my adult life where you need to evaluate the cost/benefit/risk of any decision. Over 30-years of that hones some ability to evaluate information and make good decisions, and to spot where someone is full of their own importance.
I'm sure John will make some snide remark. Just take it in context with his ego, his track record on other websites, and go from there.