The above two pages include several "inoperative" statements as Nixon described one of his office's claims in 1973. Way more hopes than facts.
Kee 15 is narrower than Osprey, hence a smaller boat. Nomad is narrower than the Kee 15, not larger, and no sentient individual would "tweek" a Nomad to resemble Peregrine, which was splashed from Nomad. Pheonix has differential rocker. It is not a larger version of WildFire which is symmetrically rockered and much loosed in the stern.
Vacuum formed hulls are sucked into female molds with lots of vacuum pipe running around the outside to vent holes; generally upwards ever since a MRC guy dropped his Zippo into a downsuck mold.
Quantification often helps. When we start measuring items it clarifies our thinking, we can discern differences, so....
Colden DragonFly 14.5'l X 28.5"w, 25.5" wl, 2/2" rocker
Hemlock SRT 15' l X28.5"w, 26" wl, 2.5/1.5" rocker
Colden Nomad 15'4" l X28.5"w, 26" wl, 1.5/1" rocker
Hemlock Peregrine 15'9" l X28.5"w, 26.5" wl, 1.8/1/3" rocker
Swift Keewaydin 15 15' l X29.5"w, 26.5" wl, 2/1" rocker
Swift Osprey 15' l X 29.5"w, 27.5"wl 1.5/1" rocker
NthStar NthStar Solo 15.5" l X 30" w, 26.5"wl 2/1" rocker
NorthStar Phoenix 14.5' l X30"w, 26.5" wl, 2.5/1" rocker
WeNoNah Wilderness 15' 4"l X30.5"w, 30"wl, 1.3/1.3" rocker
Bell RockStar 15.5' l X 31"w 28" wl, 2.5/1.5" rocker
Swift ShearWater 16'2" l X 31"w, 28" wl, 1.5/1" rocker
Swift Raven 15' 3" l X 32" w, 29"wl, 3/2.5" rocker
Notes:
1. excessive stem layout increases overall length w/o changing waterline length, [Peregrine, Wilderness.] For most hulls figure wl L is 9" less than overall.
2. rocker doesn't compare between manufacturers or designers. Peregrine and Wilderness have almost none. Osprey by Winters has more than Kee 15 [Yost]. RockStar and ShearWater have similar rocker although the numbers differ???
3. For stability, look at waterline width.
4. Seakindlyness is approximated by the difference between max beam and waterline width, more being better.
5. The narrowness of SRT and DragonFly, combined with their rounder bottoms make them questionable for larger guys looking for a stable platform.
At 5' 8.5", 170 lbs, I need to move my offside knee to cross heel Osprey, ShearWater, RockStar or Wilderness. They seem huge to me, but I'm a compact guy. Larger folks with wider shoulders and knee spread will find them a better fit than the several 28.5"/29" hulls with ~26.5 waterlines. So it goes.