I purchased this some time ago and I have yet to make use of it mainly because I didn't know how much user input you need for it to stay in control. For myself it doesn't matter much but I am getting my daughter into drifting and want to give her instant gratification and eventually ween her off the dbox. I need serious advise here about using the dbox so please no opinions about whether this should be used in the first place. Any constructive instruction is appreciated! Thank you in advance.