Thanks RP for your comment and interest in our mods. Thought we would chime in here since we hadn't seen anyone comment. We do all the modifications in house and offer a variety of different styles. New models are being added weekly. The regrind is a simple process of grinding the tip down to give the knife a reverse tanto or sheepsfoot appearance. The rough edges are all smoothed. Then some of them are acid stonewashed, backspacers swapped, and then resharpened. They have been good sellers for us and haven't had any complaints. They are a fairly new listing so there may not be too many with information. Hope this helps.