Its an old skateboard rail i had, i bought it for 30ish, but i also used to have a flat down i made, and what i did is for the last leg of the flat, i had the flat and the down on the one leg, so they each took up half the width of the leg, and when i screwed them both in, i sanded of the edge of the leg facing the down so it would be on an angle, and shaved some of the pvc on the transition of the flat to the down so that we wouldnt catch when riding it, its the same sort of design as my a-fram rail, i cant post a link cause im on my phome but just go to my pics. Its hard to tell but for the peaki sanded the middle support beam where the peak is and sanded the pvc on the top so it was level, hope that helps, im not a good proof reader on my phone so you can inbox me if you want
I've got 4 pvc rails: a 3 foot high, 12 foot double barrel. Three 10 foot double barrels a metal rail, and a pretty short box. I have about a 6 foot drop in for the summer. Also a variety of jumps built over the winter from 10-20 feet.