The sling shot lock up doesnt require a cover because you dont NEED one, just a simple mod to the stock one to make it work, but yes i suppose to does give a sleeper look. The difference between the sling shot from DL and the other lock ups with the weighted arms that your used to seeing is that the sling shot one is used with ball bearing weights. So if you need to adjust or add more weight to it, its a little bit more of a pain to do because you have to remove the whole clutch cover and tilt the bike on its side instead of the DD one where you can just take the quick cover off. But if you go with a sling, Lane can basically tell you how many balls you will need based on what type of riding you are doing and power your making