When two boats share the same hull type — in this case both the Gillgetter 615 Tiller 2011 and the Gillgetter 720 RF Cruise 2008 are pontoon 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?

Size is the most obvious dividing line here. The Gillgetter 720 RF Cruise 2008 measures 19,0 feet overall (2008), giving it roughly 3,7 additional feet of deck space compared to the Gillgetter 615 Tiller 2011 at 15,3 feet (2011). Weight tells a clearer story for trailering families: the Gillgetter 720 RF Cruise 2008 tips the scales at 1 425 lbs — 600 lbs less than the Gillgetter 615 Tiller 2011 at 825 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.

The power gap is worth calling out. Rated to 75 hp, the Gillgetter 720 RF Cruise 2008 has a 50-hp advantage over the Gillgetter 615 Tiller 2011's 25-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 Gillgetter 720 RF Cruise 2008 is rated for 10 passengers, while the Gillgetter 615 Tiller 2011 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Gillgetter 720 RF Cruise 2008 could be the deciding factor.

Both are 2-tube and 2-tube pontoon designs respectively. Tube diameter and gauge affect stability and load capacity — more so than most buyers realize when comparing on paper.