Dave Draper one of the best physics of all time, back like a mountain range.
I love working back, although it is not a 'mirror' body part, i think good solid wide back development can separate you cosmetically.
what a great thread i truly am inspired by all the old school dudes, i used to think as a kid if i could flare my lats like franco and revees, middle back delt tie in like draper, thick bis like larry scott, square pecs like arnold, waist to chest ratio of nubret, leg and ab detial like zane...etc
those guys are truly demi-gods!