I wanted to know what the best gravity for tricking is, or what all you pros use.

Actually, if someone could list all the gamerules, that would m nice.

-30.00

Use the gravity that you feel you are most powerful in and don't use the settings the "pros" use. But yea -30 is a good place to start

i think -22 is the place to start but -30 might be the best place to start

to do backflips practice you need like 15.00 gravity

Start at -20.00 and see how well you do. But if you want anyone to be properly impressed you will have to work up to -30.00 from there since it is a good balance between realistically challenging and frustratingly impossible or just overly restrictive.
Disable fracture and dismemberment and all of that as well. Basically copy the game rules from xspar.tbm.

honestly it doesn'tatter what gravity you do it in as long as it looks cool bu make it reasonable

Most of the well known trickers do -30,00 so if you want to compare your tricks with those of Nuthug and Oblivion then you ought to try using -30.00.