How would dispensers with good hearing try out aids if they don’t need any or minimal amplification?
If it’s just taking a quick listen to see if the aids work/amplify or not, it’s one thing. But to actually wear it all day long for a month in all different listening environment is another thing altogether.
If you don’t have adequate hearing loss, I’d say you’re not qualified to try out aids to offer an opinion on how well they work or don’t work. That’s because there’s no frame of reference on how bad it’d be for them if they didn’t have the aids on.
If that’s the case here, no wonder they all claim to see no difference between the OPN 3 and OPN 1. I’d take their opinion with a grain of salt.