Took a plumbing flange and steel pipe to make the base of the loading pin. Then I drilled a hole through the top and placed an eyelet so I can hook a carabiner on it. Nothing fancy but gets the job done.
So I don’t jump on this trampoline but use it for sprint training. The thought is to have the legs shoot back up and you fixing th legs back down faster.
This has saved my shoulders in benching. The neutral grip is great. I used it for seal rows as well. EVN did some presses with it. It does look cheap and the other grip placement is not ideal for me.
I use a Menards 5 gallon bucket for my chalk. It is easily transported to any location in the gym. It also reduces chalk dust ever with the taller sides.