Replying to Backyard Jibbin quick help.

So, i just made my 15 foot double barrell (i must have said this a shitload of times so far, cus im stoked). I set it up in my backyard and what not. Built the lip and a wimpy lump for a drop in. Now, i don't have that much of a slope in my backyard. So hittin the rail is almost near impossible because i have no speed. Any suggestions to get speed? The only option i am considering is making a ghetto drop in outta 5 year old waterlogged plywood (i'm trying to use what resources i have).

+KK for any solid answers..