This thread has been great! I haven't done a lot of pocket fixed blades (I carry pocket knife in right side pocket, car/house keys in left pocket, my smaller "pocket sized" fixed blade goes horizontally across my belt under my belly), and for the few I did do, I asked what the customer what they liked since I hadn't done many and they would send pictures of pocket sheaths they liked, so I would try to copy what they liked.
Almost all of them liked some adjustment in the ride height, so I used the Utilclip Slim 3.3 or XL, but most still wanted a good bit of handle exposed and sometimes with the mouth of the sheath deep in the pocket and the clip sticking up more. They were happy with them, but those pocket setups always felt weird to me! The sheaths ended up being wider because the Utilclip would need more space on the edge of the sheath so it would be even with the mouth of the sheath and if it was too close to the guard/front of the handle, it wouldn't lie flat on the sheath and the hand would hit it. With a lot of handle sticking up, with baggier pants, the handle (where more of the weight is) would move around more. So when I tried the ones I made for people, they all felt "weird" to me, but they liked them! One guy is even carrying a nearly 9" OAL Kephart as a pocket fixed blade! LOL.
Going to play around with a centrally located clip going forward and a deeper riding sheath (less handle exposed) and see how that feels! I am getting ready to do up a bunch of smaller pocket fixies based off the Bugout and Mini Bugout (like the 2 smaller ones with Carbon fiber bolster/Koa handle and the Snakeskin Micarta/Toxic Green handle one) soon and wanted to get a better designed sheath figured out for them, so this thread has been perfect! Really like Navman, Hammer 67 and DFarm's leather pocket sheaths; so clean looking and look really well designed and comfy to wear!