Slit, slot, potaeto, potahto, plate, loop let's call the whole thing off.
To answer A.L.'s question...no, or yes. The Mini Mojo sheaths and various others were built to be "super extra heavy duty" and have only been made at Frank's request. Up-side: Gratuitous strength, super cool look. Down-side: VERY labor intensive (thus expensive), not truly ambidexterous (the plates only fit on one side).
Slots- Up-side: Fast, easy to make (therefore cost effective), truly ambidexterous, allow more attachment options, does not add mass to the unit. Down-side: Although kept to a minimum, they do require the removal of material.
When I first made the "Plate Mounts" for Frank, cutting slots was far more difficult due to tooling and machinery, I had to redo more than one sheath after cutting what I'll call "blemmished" slots (use your imagination here). Needless to say, I have improved my techniques and acquired better tooling. To my knowledge, none of the slotted units made have failed, and I know that some of them have gone places no one should have to go.
Those of you who recieve units with slot mounted thigh straps, will notice that the strap is oriented to the outside of the knife. This configuration holds the knife closer to your body and places a minimum of stress on the sheath. The slots are there only to maintain correct orientation of the strap.
I have pics of Med's unit (with permission of course) but cannot post 'em (I'm a basic member). Plus, I think he should get to see it first! If however, Med agrees to it and someone wants to provide the needed assistance.....