Marker trg with 2 dogs is starting to cause me grief. Trigger and Trooper know their names, and they are used throughout trg. The problem arises when one desrves a 'No' marker. A trg volley may sound something like... "Trooper Trigger Come ..Yes..Trooper Sit ..Yes.. (treat) Trigger Down ..Yes..(treat) Now Trooper will Down on his own, resulting in a NO marker, which is of course heard by Trigger, then I am forced to approach them, or repeat commands, ...hopefully you get the point. They are 9 month old littermates males, training them separately is just not practical, and I sense the dogs learn off each other.I've tried picking other words for "Yes" and "No" , and it seems easy enough, until you forget which dog gets which, or they figure out that Good OR Yes = treat. Any suggestions OTHER THAN train them separate would be welcomed. We are still in the early stages of trg, and my goal is to maximize every trg session and get them up to speed for eventual off leash and e-collar. If someone has experience they could share with me, please do...