Hey guys it was a long time and i ended up moving spots etc. and didnt have to deal with the bad ground for awhile.
Also
this product I posted is NO GOOD. i didnt need to end up buying it i saw it in action. it is commonly used to fill cracks in streets and it ends up very rubbery and not good at all for skateboard wheels. I am kinda back to the drawing board on this one. I know the stuff my cousin could get me would work but I cant really justify $100 right now to fix huge patches of ground. I think that may actually be what I need to get to make the ground really, really good again.
but the reason i am asking advice again:
I found a really perfect 3 stair and the landing is pretty bad. Would it be possible wiht like, 2-3 bags of concrete, to make like just enough of a landing so its nice thne you can transition out to the bad ground once you have made your trick? how would I go about doing that? you just mix it up in a pail then try to smooth it out as best you can with something flat? does it need to be really thick to stop it from just cracking like crazy, or since it has the base of the rocky asphalt ground, will that help somewhat keep it togther?