Bad part once you hit the 17-18 range it all comes down to making yourself go in faster, turn in faster, get on the gas sooner, etc..
There are no quick jumps by finding a line here or there, it all comes down to the small things in each corner.
I am trying to work on my Turn ins this year getting from Vertical to the knee faster. But this also means I either brake sooner or harder to get done a bit sooner so I can throw it over. I think the Switch backst at Nashville may have helped me a bit. But this something I am going to have to conciously make myself do.
Wants to crawl into a hole 6ft deep.