I guess that depends on what side of the fence you fall on for 'better to have and not need, than need and not have'. But seriously, I was always under the impression that duration of load was a killer, winches not being an exception. So with the age old 1.5x loaded weight, an 8k winch would be perfect for a 5500lb loaded rig...but would it not be safe to assume winch longevity increases if it were 12k winch due to load capability? As I noted previously, of course you can get creative with pulley blocks, but you can do that with any winch making it moot. So then it becomes a question of prioritizing speed or pulling power/longevity?