I had a 3" slicer and a 3.5" Spanto grind. The 3" was too small...like a small Sebenza and the 3.5" was too bulky, clunky, heavy. There are as many opinions on this as there are people, so I don't expect many to agree. I realize that the quality is there, but I want a ~3.3" blade in a folder that doesn't run over about five ounces. And Hinderer doesn't make that. I had a 0550 and a 0551 also and both are excellent Hinderer-designed knives, but all were too heavy-duty for my EDC needs.
I've had a few Sng's and that's a nice size and weight. But I guess I'm more into Sebenzas...and a Umnumzaan if I want "tactical" appearance and capability. I am also fond of my new Spyderco Brad Southard...with a 3.5" blade, 4.1 ounces, has an excellent blade-steel and is a manual flipper. I really like this knife, and I've been carrying it for several weeks.
Sonny