The Custom Weld Sport - 17 ft. 2009 vs Custom Weld Viper II Inboard - 19 ft. 2009 comparison sits squarely in the category of decisions where specs alone won't tell the whole story: intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department - Custom Weld Sport - 17 ft. 2009 at 17,0 ft versus Custom Weld Viper II Inboard - 19 ft. 2009 at 18,0 ft. Weight tells a clearer story for trailering families: the Custom Weld Viper II Inboard - 19 ft. 2009 tips the scales at 2 400 lbs - 1 300 lbs less than the Custom Weld Sport - 17 ft. 2009 at 1 100 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats are rated for 5 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Custom Weld Sport - 17 ft. 2009 and Custom Weld Viper II Inboard - 19 ft. 2009 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.