Great call. I think it's much better to look big in a t-shirt or even a sweater or button-down or something. Different demands, traps, shoulders, neck, chest. Looks much more impressive in my book than a slim waist, vascularity, and kind of skinny. John MacCallum had a good bit in one of his old (before my time) articles about how some guys looked great under posing lights but you couldn't even tell they lifted when they were dressed, while Reg Park wore a sweater that looked like "they shore every sheep in England to make it."