The Blue Wave 170 C Special 2004 vs Blue Wave 220 T-Special 2006 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.
The power gap is worth calling out. Rated to 150 hp, the Blue Wave 220 T-Special 2006 has a 80-hp advantage over the Blue Wave 170 C Special 2004's 70-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Blue Wave 220 T-Special 2006 is rated for 9 passengers, while the Blue Wave 170 C Special 2004 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Blue Wave 220 T-Special 2006 could be the deciding factor.
Bottom line: Choose the Blue Wave 220 T-Special 2006 if your priority is putting more people on the water - it handles 9 passengers and at 22,0 ft it has the deck room to back that rating up comfortably. The Blue Wave 170 C Special 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.