hello mate, keep the disc brake they are good disc brakes,if you really want to stop hitting it, just say to your self, you are paranoid and you can do this.its all in the mind i am telling you,stop worrying and get comfident by doing a small sidehop. i have a hs33 for the front i am deffinantley going to purchase a front disc, and i sidehop tot he left aswell. p.s. if you have a spare hs33 you could use that to grow your comfidence then swithch back to disc.