During my work as an instructor I`m jumping my JFX 87 since 2 months. Do not compare the JFX with canopies like a Sabre! The JFX has the performance of a Velocity with openings of a Crossfire, always on heading. But it is very responsive to harness inputs, so it is really a high performance canopy. In my opinion the JFX is a revolution in the cross braced canopy class.