I really saw in HYCM for the first time in my life that a company can have different types of spreads. At first, I didn't even understand why this was needed and what it would give me in general and whether it was worth conducting any experiments at all. But then I realized that it really makes sense and it certainly allows you to normalize your work and make it more literate.
And of course I appreciated this format and I already decided that my decision is of course fixed spreads and nothing else.