Don Greer is a NRA Certified Pistol Instructor and Personal Protection Inside the Home Certified Instructor.  He founded PDSIMS in 2009 along with his then business partner and fellow instructor Carl Sharp. Over these past eight years, Don has instructed hundreds of handgun students in Basic Handgun Skills along with the Colorado Concealed Handgun Permit Classes.
Don also has previous instructing experience at a large firearm training academy.
Dons philosophy is "Keep training because the bad guys are not going to give you time to get the rust off, nor are they going to inform when the attack will occur".

Stay alert, Stay Safe
Diane Hill is a NRA Certified Pistol Instructor and Personal Protection Inside the Home Certified Instructor. She has completed many firearms courses at Front Sight Firearms Training Institute in Nevada.  Diane has also completed a multi-gun (pistol, rifle, shotgun) defensive training class with Defensive Training International.  Her philosophy is,"I am always a student and sometimes an instructor."  Learning never ends.