Both the Tige RZ2 2012 and the Tige Z1 2009 are modified-V designs, both built in fibreglass, so 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?
On paper these two are close siblings in the size department - Tige RZ2 2012 at 22,0 ft versus Tige Z1 2009 at 21,0 ft. Weight tells a clearer story for trailering families: the Tige RZ2 2012 tips the scales at 4 150 lbs - 436 lbs more than the Tige Z1 2009 at 3 714 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.
For family outings this is probably the sharpest distinction between the two. The Tige RZ2 2012 is rated for 15 passengers, while the Tige Z1 2009 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Tige RZ2 2012 could be the deciding factor.
Bottom line: Choose the Tige RZ2 2012 if your priority is putting more people on the water - it handles 15 passengers and at 22,0 ft it has the deck room to back that rating up comfortably. The Tige Z1 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.