I love the Jump Sport 350 and I love it!!! Right now I have the cords adjusted so there are two knots above and two below on one set and the next there are three above and one below- I repeat the pattern every other all the way around.
Does that make sense? I think Jumpsort refers to it as their medium setting or something like that. If I didn't explain well tell me and I can take a pic and post it.
I originally bought the 250 but the cords were not adjustable and my bounce was off because it was too soft. The setting I have on the 350 now is perfect. Hope that helps