There is no "best" because it is all personal preference, but for me 44 calibers work pretty well

What ever is most comfortable I ride grizzly bears w/ hangers flipped to make it feel like a lower degree I also have my trucks much looser than most of my friends. I am able to do this because I have my weight very well centred on the board so I rarely get wobbles. Just play around with whatever I personally would not go 40-42 degrees because w/ the board already being so low the lower degree will not allow you to turn easy

40 because you will need to be stable trust me.

Caliber 44° trucks are enough for me (if you don't want to spend a lot on precision trucks). Just playing around with different duro and shape does a lot as well

Yeah 44 calibers are really stable at high speed But it is personal prefrence

All personal preference. I love my cast ronins more than any other truck I have tried for DH. 42.5° baseplace, very stable centre, but also have a lot of turn when you need it.

Get the wide ones cuz u be landing hard turns

Paris trucks

44