I have no idea what you mean by JX3.
Come to the light, the JX3 tree saddle light..............
Don't be afraid, you will sit from dark to dark very comfortably, no fidgeting, be able to snooze when you want, no dreaded hip pinch, no back aches, you can shoot 360° around the tree with any weapon, bow or gun, no weak side shot.
No platform required, only a ROS, or a JX3 wide top climbing stick, no sore feet, no knee pads required, no sore knees, no tired legs from leaning as you can sit all day, built in pack frame for carrying all your needs. No getting into “saddle shape” as your Lazy Boy at home does it for you. Buy once, cry once.
Come to the light, the JX3 light...........