Replying to Coc what session to come to

I heard that session a has the biggest jumps but I am going there to learn rodeos, mistys and maybe learn corks but i really dont feel like throwing them on the biggest jumps possible. I heard session b had smaller jumps and would be a little more chill and smaller. I cant go to session b because i race motocross and that is a big double header points race. Point is i have to go to session b if i go. is there a huge difference? Im not to comfortable in the air i can only 180 every way. switch and regular 360, and 540. I have also hucked a few backflips and will probably get those down to. Does anyone have experience with either session and noticed a big difference? is session a full of huge jumps and features?