Joe @hypertrophycoach Bennett always dropping knowledge!
One of my Meat and Taters movements from back today. If you’re look to tax your back as much as possible while keeping your elbows, shoulders and wrists intact, look for something with a chest pad, and handles that allow for an arm path to move comfortably/freely at your side, straight in line with the machines line of pull/force.
Aside from prime, look for Cybex, Nautilus and Icarian pieces from the 80s and 90s. This is pretty much the only time equipment companies had people with any actual biomechanics qualifications designing equipment. A quality chest supported tbar is also a great option. (Minus the profile)
And after top sets, if you don’t spend time analyzing how you could have gotten more out of the set, and how you’ll get more out of it next workout, you’re putting either too little thought or too little effort into your sets. At a high enough level, often it’s not lack of knowledge, but lack of self awareness that could be limiting your results. Always aim for harder work, and a smarter approach.