I've flown this kite in both modes and works great. The downside is the added weight and drag of the lines in 4-line mode make it heavy so you'll need a solid 10mph to fly it. The 2-line bar is to cut down on costs is what they told me...including a 4-line bar and lines set would double the price...I guess you save the money by using your own 4-line kiteboarding bar.
Atlast someone replied! Thanks!
I've ordered this trainer kite anyway and waiting for it to arrive. I already have an old 5-line bar to be use with this kite.
10mph, lower than that it wont lift off the ground?