How to take tricks bigger?

I have gotten my heelside and toeside 360s down, but have a hard time taking them wake to wake. If I need to go wake to wake I have to get on the gas, because I am towerless and my wake is subpar. Any ideas on how to keep landing my tricks and to take them bigger? I am going to get another fat sack to try to increase the wake.

Maybe ride at faster speed and go with longer line.