I went from a half ton F150 to a F350 crew cab dually.... And noticed...that it took more fuel to operate, harder to park in my works parking garage, I couldn't use automatic car washes, and the suspension was much stiffer. Actually towing the trailer was about the same. The f150 was properly matched to the trailer which is probably why I didn't notice a quantum leap in towing performance. I needed the dually to carry a golf cart and 1000 lb of tongue weight and my family.
If you need a dually for the chosen trailer then by all means get one.... DRW carries heavy weight extremely well which is exactly what it is designed for.
This stability argument with feet is not really correct. The DRW is there to carry substantial weight..
I remember the foot illustration but the premise is incorrect. The premise has you start standing with your feet together and then have someone push you. This does not apply to trucks.... Half ton, 3/4 ton or 1 ton start with their feet spread apart.... Then you spread your feet slightly wider... Now you have a more accurate illustration of the SRW vs DRW
The feet together illustrating is like comparing a motorcycle trying to tow a fiver vs a dually...it's not accurate and it's impossible.
If the SRW will carry the weight you need then by all means get one. My next truck will probably be a SRW short bed.
Thanks!
Jeremiah