I am not sure if they do or not. I have been trying to find good sliders for me has I normal find that sliders are hear don't work that while for me has I find that my skill is below a lot of peoples has I find default all pro to be to hard. I have found that if you have the OPI slider up higher that WR don't do has good of a job at getting there feet in bounds on the side lines has they do when the slider is lower.