Realistic Skate Character Physics

Hello unity addict
I am Sylvain Martens also known as Hesa.
I have been trying to create a realistic skate character physics system for a simple game.

I tried 2 things, first using Wheel Collider, This way i got a nice physics For jump, rolling, but when i jump my skate start to fly like it was a piece of paper, i tried setting mass, but i needed to update the speed of skate when rolling, but once i increase speed it start to fly back.

I also tried with character controller, that way i have fully controll of the skate, i dont have yet a character with animation so i cant say how it look when doing tricks.
But i can say in a half pipe it dont look realistic, Here is a image of what i mean :


But it should look like this : ( See attachement )

Also with character controller the skate does not fit to the ground always, like in the half pipe it does not allign correctly when starting to get up


If you have any idea for something realistic please let me know.

If you want to take the time we can talk on skype ( wisahesa )
I can also let you remote controll my computer to let you test things with my skateboard scene

Thank you !