I've seen many references to Schrade LB7s and Buck 110s as being too heavy for pocket carry. I disagree because I own many so-called "heavy knives" and pocket carry one daily with no problem. The way I do it is in my back pocket. I've always found this way the most comfortable but sometimes when I got up I'd find my knife came out of my pocket. I also didn't like how the knife would move around and sometimes wind up horizontal. I preferred carrying this way but it wasn't perfect...until I came up with this mod:
On almost every pair of shorts and jeans I own I've hade a seam sewn on my right back pocket that is just a bit wider than my widest knife. The picture I've included is a pair of old work shorks so the thread is black...I usually get a thread that matches the material exactly so this mod isn't noticable but these are just work shorts so I didn't care about the contrast. My wife sewed this for me on the sewing machine but most of the others I did myself with a needle and thread. It takes me about 10 minutes to do this. Since I've been carrying with this method I've never had a knife fall out of my pocket. This mod is also good for a thin flashlight or other similar tool.

On almost every pair of shorts and jeans I own I've hade a seam sewn on my right back pocket that is just a bit wider than my widest knife. The picture I've included is a pair of old work shorks so the thread is black...I usually get a thread that matches the material exactly so this mod isn't noticable but these are just work shorts so I didn't care about the contrast. My wife sewed this for me on the sewing machine but most of the others I did myself with a needle and thread. It takes me about 10 minutes to do this. Since I've been carrying with this method I've never had a knife fall out of my pocket. This mod is also good for a thin flashlight or other similar tool.