hers my son riding his 50 track i made for him and i was just wondering if there was a better way to make the jumps? should i take the lips down a bit and stretch out the landing ????????? http://www.youtube.com/watch?v=wQi5GW7hUOU
Those do look steep, but he rides them well and it does keep the speed down. You'll have to have more room before and after the jumps if you want to tame them down and run them faster.
It is very common to have standing water problems if you dig up dirt to build the jumps. It is much better to plan the track, shape the runoff areas, then haul dirt in to build the jumps.