so i've got all the shit necessary to build a 3-4 foot high mini in my backyard. for a three footer, i'm looking at maybe 5-6 feet of tranny on either side and possibly an 8 foot length for the flatbottom. i'm curious as to whether this will make the ramp too fast/too slow/etc., so if you've built a ramp before, feel free to chime in with your input. thanks, chaps.