Looking really good! Maybe after this alpha test is complete a small group of beta testers can put it through the ringer.
The only spot that concerns me is where the 3rd rung from the bottom connects to the rails. I think that with the material type, amount of material removed and the long span from the second rung to the top that this area could fatigue and fail first. After heavy use I’d recommend pulling the 3rd rung off and inspecting the rails and holes for deformation and cracking. However, for all I know you guys will do this for the whole thing. I have your sliders on my rig so I trust C4