The Connexx software for Rexton/Siemens HAs can calculate and apply a critical gain measurement to manage feedback. However, when the critical gain measurement is applied or “optimized” to a particular program, this results in a decrease in the gain being applied. My HIS at Costco hates the way Connexx deals with feedback management by “basically chopping off the gain curve”, and therefore usually does not even use it. He noted that ReSound does a much better job with feedback management without compromising the level of gain. The HIS demonstrated this by performing a critical gain measurement, and asked me to watch the gain curve as the measurement was “optimized”. In my case, gain was reduced by at least 5 dB in critical areas. Since the optimized gain (based on a real ear test), would be decreased to manage feedback and would affect my speech recognition, the HIS recommended not using it unless the feedback was a real problem. This seems like a major compromise in an attempt to manage feedback. Would calculating critical gain, but not optimizing to a program do anything to manage feedback, or must the gain be optimized to have any effect?