id like to know

Most people use 0 0 -30 I think, which is sambo gravity.

-30 is what you use for realism but this is very difficult to start off with. Some people prefer using -20 because it still looks quite realistic but is easier.

However, do not only learn how to parkour in -20 because very few people use it and in the end -30 parkour is more impressive.

If you have any more questions or parkour or if you just want advice feel free to send me a private message.