I am a SMM god too. But the mechanics are super different. On the 999 second speedrun kaizo level I am making for NSMBW, I am restricted to its mechanics. There is no spin jumping off walls, nor on piranha plants. Midairs are not a thing, double jumps don't help (at least that's what I have experienced), momentum is very different, ground pounds don't make you gain so much height, one sided wall jumps are not possible, double shell jumps w/ setups are nearly impossible....
But I doubt this hack will require all that. I am just saying that my SMM skills did not help me at all to complete the tricks my level requires. (but I did find a few lesser known ones... >:} )
If I made an SMO level editor, would you use it?