I wouldn't recommend the Bridge to a person who wasn't competent in the barbell lifts and was able to be mostly accurate in recognizing set RPE. I have trainees who I've watched do a set that was a solid RPE 6 and have them call it a 8....or clearly a 9 and call it a 7. You really need someone who can tell the difference there to watch how the life reacts to the load, bar speed etc.On Barbell Medicine? It's like $65?
Can you link where you're finding free?