I have a Glock 23 and a 27, and I read a review from Jeff Quinn of Gunblast. He reviewed an item in 2005 by DPM that reduced recoil in a Glock 26. I read more recently that people are using metal guide rods, but this product got my attention today: http://www.dpmsystems.com/en/home/ What are your thoughts on this system? Do you sell something similar? I don't notice widespread use of it based upon reading the discussion boards. Thank you for any insight or information that you may give me.