I am really interested in both of these and I am feeling like buying a pedal here pretty quick. They are both supposed to be OD's though it seems to me that the Sparkle Drive is a bit more of a Distortion ala Tubescreamer, and the X-ray, well I am not quite certain but I have read very good things about both. Trouble is I can't quite decide if I want more of a drivin sound or a Distorted sound. Something that handles both I suppose. Right now I think I am leaning more towards the X-ray, but input from you all would be greatly appreciated. They both seem to be less known pedals. Thanks guys.