Right you are. The ergo triangles are really for comparison purposes only; your actual comfort may vary depending upon your own body style and other various factors. Not just the position of the seat, but also its width, depth, shape, and cant, make a difference, and the shape of the gas tank as it meets the rider is also critical. The steep, sharp rear of the 900SS Ducati's tank, for instance, makes it feel more stretched-out than it would otherwise. (In contrast, the 2000 Yamaha YZF-R1 feels easier to ride than the '98, mainly from just a change in tank shape.) The cant and angle of the handlebars make a big difference in comfort and steering feel. Also, how tall is the windscreen? One that pours air on your chest makes lower bars more tolerable. Ergonomics is a complex science; think of our triangle as a starting point.