If you're spending hard-earned money (not to mention precious spare time, which can't be replaced...) on equipment, travel, film and paper, model fees, and all the rest, it doesn't seem logical to run the risk of messing everything up by not the using correct chemicals and procedures for processing.

(I understand, of course, that some people enjoy experimenting as part of our hobby. I do too, (in my case trying out long-outdated and obsolete films), but I keep that as a totally separate interest from trying to produce the best photographs I can.)