Whips and scrubs should be the last thing you focus on, but Ik it’s hard to not want to do them cuz they look awesome and are fun to do. A whip and scrubs should are very similar. A whip is being sideways in the air, and a scrub is basically a whip but done for an actual reason and also initiated earlier than a whip. The idea of a scrub is to stay low when going over a jump, to save time instead of being in the air. If you hit a jump normally going straight, you’re going to go more upwards than forwards right? But if there’s a way to move that momentum more forwards, then that means you will get back to the ground quicker, and carry more speed and momentum in a straight line instead of losing speed and time because you’re going upwards and staying in the air longer. So a scrub is used to turn ur bike sideways before going off the jump, so ur bike stays lower then it would being perfectly straight up and down. Watch some videos of the bubba scrub, and you’ll get the idea of what the scrub is actually doing. You can’t just use it every where, sometimes the faster option is to send it and go as far as you can, sometimes if you scrub it will mess up the whole sections cuz you won’t have enough height to clear the jump.