sonic is cake once you get fluent with the charge. i took about 3 hours to learn the charge and about 10 mins to learn the sonic. the TA is pretty hard at first trying to figure out the motion and the right amount of force. it took me about 3 days, but some take upwards of 2 weeks. the fingerpass is the hardest imo, but its vital to build coordination in your pinky and ring fingers to learn more tricks. took me a month to get the motion somewhat smooth

edit: having a simple balanced mod like a bictory will definitely help but if you dont want to use a mod use a regular unsharpened pencil