I was thinking today about how i could set a rail up this summer, with the major concern being how to get speed for it. While thinking, i came up with a great idea, yet i still have not seen it be done. Instead of using soapy carpent or hard to find dryslope, why not use something like an old convayerbelt? At my parents business they have these roller things that are 6 feet long and connect together. they look like latters laying down, except that where each 'rung' would be, there is a rolling pin like devokale. they are spaced about 4 inchs apart. (you can push hundreds of pounds on them with almost no effort at all) so all i could do is set something up where there was like a 18 foot section going down, then a 6 foot section at a slight uphill for a take off. am i just cracked out or may this just work? I mean a 6 foot section would get you going fast enough for like a 10 foot rail.