Jimmy was playing much better and kinda left alone while JPJ and JB locked in.nly when Jimmys altered his tone and his soloing began to decline a bit, did Bonham start playing more with him than Jones. = Jimmys playing peaked in 73. His tone also peaked in 73. His soloing declined in 75. Everything about page declined is 75 sound,tone,dexterity,musical choices(throwing away the blues rockabilly sections and creative freak-outs shows that he really couldn't deliver anymore live. All good things come to end. But it came to an end after 73. Bonham's playing was an amazing creative twist in zeps live playing. It gave them new live textures ,sounds and kept things fresh.