What you said makes sense because I remember a Costco dispenser in another thread in this forum was extolling the virtue of doing an REM. Yet I had fitted 4 pairs of HAs with Costco over the last 15 years and my Costco dispenser never did a single REM on me for any of those pairs. They never even mentioned REM to me.
Fast forward to the latest Oticon OPN I just got fitted a couple of months ago at an independent HIS, she never did an REM on me afterward either. I asked her about it and she said that she only does it if there seems to be an issue with the fitting that would warrant an REM to verify the effectiveness of the HA. She told me that most modern HAs now are fairly spot on in terms of delivering their target goals, so she rarely sees the need to do an REM. But it seems like she does have REM equipments by the way she talks, and that she’s done REM before. I think she basically sees if the client is happy with the HA after a few initial fittings or not. If the client is still unhappy and has issues that can’t be dealt with via programming, then doing an REM would be an option to her to resort to as a debugging tool. But she doesn’t do it as part of the standard fitting process as a matter of course.