When two boats share the same hull type — in this case both the Duckworth Navigator Sport 175 2007 and the Duckworth Ultra Magnum Inboard Jet 23 2012 are deep vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

For family outings this is probably the sharpest distinction between the two. The Duckworth Ultra Magnum Inboard Jet 23 2012 is rated for 7 passengers, while the Duckworth Navigator Sport 175 2007 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth Ultra Magnum Inboard Jet 23 2012 could be the deciding factor.