It really is not complicated high up. Basically it goes a little something like this.... all tile floors are installed wrong on plywood substrates because tile dummies are dummies. After you get that part down, learning the deflection calculation chart for plywood subfloors is a 10 min affair that is easily referenced by our good buddy the internet. Then all you do is use Mapie LFT for EVERYTHING and you will be ok.
I have 10's of thousands of feet of tile installed on my current phone number, wall tile, shower tile, floor tile, glass tile, mosaic tile, ceiling tile, exterior tile, backsplash tile, waterproof tile, water holding tile... you get the idea and so far that phone has not rung once to say "hey, come fix these tile" the only call i get is come lay some more tile. It pays out the snout and I do not charge an arm and a leg for it and more importantly than all of that, I still like it. It is very creative, mildly artistic and it is one of those things that when i am done i can stand back and be proud of. Every time i do carpet and the like i say to myself, yup, its fuzzy alright.... not much magic in that. Still takes a great deal of skill to do properly, i am not saying that, but a ****** carpet job looks the same as an amazing carpet job on day one and frankly i am not gonna stand around a clients house for a year or two to be able to see the magic of a proper carpet install
I use to thoroughly enjoy hardwood but with engineered plywood, sorry hardwood, it takes all the wood out of it, not to mention pre finished removes all of the craft that hardwood truly is and just turns it into a job. Still like it more than carpet, but it lost the flare.