The ZT Hinderer options are as follows:
0550/0551: 3.5" blade, studs only
0560/0561: 3.75" blade, flipper
0566: 3.25" blade, flipper
While the 0566 isn't a 3" blade, the people that have it have been saying that it's about right for their EDC. I don't know if there's a length limit where you live, but if you can get one in hand, maybe you'll find you'll like it.