For me it was the overall girth of my shoulders. My shoulders and I have a long lasting relationship that goes far back. They have caused me pain and misery after the first year of my first goal want, and after about 6 or so months of care and recovery, they bounced back, stronger than ever. But, were by far the most troublesome body part, and well worth the patience and agony that came with waiting them out while working on them.
After losing 40+ unwanted lbs: