Not to say the info is bad but it is kind of useless when we don't know what it is you shoot or want to shoot. Supraman did ask but you never bothered to answer.
To give you an idea of why it is important, I shot large rooms in caves and quarries with a single flash unit, using the bulb setting and multiple pops of the flash. I have used the same technique for fill light when shooting thing that don't move.
Today, I shoot a lot of cars in the studio and there is no way I could do that with a single flash unit in a sane way. It would also be a pain to achieve with a few speedlights.
Subject matter is of great importance when asking such a question.