Gentleman,
I am currently in the process of developing a full customizable conventional hang-on in the LW and XOP design that would have interchangeable component parts (post, seat/saddle platform, trad platform) I am also developing sticks that can be customized based on the hunters individual height and spacing between steps. I have an engineer doing platform design and I am currently sourcing aluminum casting manufacturers and actively considering materials and process that could be used in the near future (3d printing new composite technologies, etc.) I am not an engineer. I am a CPA. Let me know if I can help in any way or if any of you would be willing to use my prototypes and offer suggestions as to optimal variable post lengths for stick and platform applications.
I'd love to give feedback on prototypes.