Dynasty 200 DX
Specs max weld 1/4" (steel or aluminum)
Welding Amperage Range 1-200 Amps

Miller Settings Calculator
Stainless Steel/Steel x 1/4" Fillet Weld
Recommended amperage range 250-325 (For mild steel increase 10%)

I know the calculator is for estimates but 50+ amps is a pretty large variation. So what am I missing? All things being equal one of these has to be incorrect??