For me, yes. I commuted 5 years fix gear on a too large touring frame with a long headtube and laid back angles. Put a 130 (traditional quill) stem on it. Hills were painful I didn't take that bike for long rides.

One day I sketched that bike and stem. Over laid on that my Mooney and old racing bike. Saw that the bars on both were much lower and a little further forward. Got t hunch that if I had a stem made that put the bars roughly on a 30 degree line forward and up from those two bikes, I ought to have roughly the same reach and position. To hit that line would take a 180 stem. I gambled and had it made. Put it on and took a hilly 75 mile ride north of Seattle. No back pain! In fact I felt great all ride until simply being hammered started to sink in.

My current 6 stems are 175, (2) 140s, 135, 130 and 120. The 4 shortest ones are on custom bikes designed to keep the stem length to production and available. My analogy for bike comfort is the "cat stretch". (You've no doubt seen cats do that stretch were they get really long. My back loves that!)

Ben