WO HD tracks are derived from pulse and pure...
Much like the Fury tracks. And as we know they are not that lengthy that we can simply memorize left turn, sharp u right, etc. in a small amount of time.

Finding the best racing lines and barrel rolls takes time and practice. Which you cannot simply apply from experience from the psp versions. The physics are not the same, you have invisible solid barriers on pulse to keep you from going off track as opposed to ship reset.

I dealt with that when i did moa therma rev...was not the same.
Then i tried knowing what i learned in HD to try that on the psp...didnt work out that way.

But this is my opinion based on my experience.