There is very few to possibly none very good DS pbt out there. It just isn't great to work with. I love the caps that come off of leopolds which should be mistel, but they're no means the PBT version of GMK. MTNU is coming out soon somewhat possibly curious to see that. KAT recently has got a doubleshot version now which looks alright, but I have yet to see one at a meet. KAT feels nice, but they have a lot of issues with fullfilment and QC.