Replying to I could use a little help with my 3's

alright, so after a hard day's work i finally got my 3's down. which is a good thing, I just seem to have a slight problem. at my hill there's this run with two "jumps", one which launches u pretty much straight into the air and u can get mad air off of, and another which is like a step up with two different jumps (one smaller one bigger). thing is, i can easily do a 3 off the step up, but when it comes to hitting the bigger jump before the step up i always land backseat when i come down from my 3's. can anyone help?