Even though Syncopia is my main Zone track, I've started experimenting with some of the others. The three hardest tracks for me BY FAR are Ubermall reverse, Modesto Heights reverse and Pro Tozo. Whether it's zone or racing mode, I am downright AWFUL at those tracks. I wish I could attempt speed laps on Pro Tozo. Maybe if I try zone battles and never boost, that might be as close as I can get.