I am a fan of a push/pull trigger for dp's. But the FB1 traps are great for setting but a pain to maintain after a catch because a big coon will bend them out of adjustments. And I can no longer get the Coon daggers. Any other dps that are a push/pull trigger?
For this hard to find, no longer made stuff, know what you want, then keep an eye on ebay. Currently one lot of 10 used coon daggers for sale. Other offers of remaining new old stock of Z traps, which look like they are about to be gone for good. Also keep an eye on Trap Shed on Tman.
Past that, I see two issues at play. With fur market in the tank......sales of new traps down across the board, so supply drying up as trap makers die off or consolidate.......and could be traps with push/pull triggers are no longer dog or cat proof......so that feature may be going out of style as a bad feature to have.