I really do. I have fought elbow pain off and on since my 20s. 5 years ago I started thinking it was a grip issue because the elbow pain would flare up when I was doing a lot of rope climbs (think very thick crossfit style ropes) and heavy deadlifts. I also started reading the difference in "golfers" vs "tennis" elbow.
my daily warm up routine now always includes a set of overhead press, shrugs, muscle snatch, power cleans, and curls all with an empty barbell (yes, in the squat rack) before I do anything else. I do this on bench press as well as pulling and squat days.
a low bar squat with open palms on the barbell IMO is the best squat position for most of us, but it is also known to irritate the elbows! so I think fish oil + regular curlings/power cleans etc really help loosen the elbows up.
Did you find the deads helped the back feel better? just curious because I have found that 9 times out of 10 deads (or RDLs) fix a bad back for me these days.