I apologize for my regular English (I’m from Guatemala) I’m user of ReSound Enzo 3D in my right ear, with soft silicone mold, (it was the recommendation of my audiologist) to adjust as tight as possible. Nevertheless I’ve needed to push it constantly inwards to maintain the internal vacuum and dont hear distortion and decrease in audio quality. The mold was made twice to verify the right size and it’s just my measure. I have seen that they publish photos of of the Enzo 3D with hard acrylic molds, my question is this, which are better to maintain the proper position of the mold inside the ear? Soft or hard earmold?
Thanks!
Hi Juan Hard Earmold is better than soft
I repair and fix hearing aids and build earmolds
I’ve tried the soft silicone molds, hated them as every time I moved my jaw I had to push the stupid things back in again. Hard molds are much better, they at least stay where you put them.
Indeed 
Specially UV Earmolds 
Excuse for my English too (I’m from Russia). I use two Oticon Dynamo. I tried many many different variations of earmolds. Now I have a pair of 3D created (UV photoplast) earmolds with 0.8 mm vent. If your audiologist can make 3D earmolds, you can also try PowerVent (very long curved vent).
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Exactly! It’s exasperating to adjust the earmold when I move my jaw when I’m eating or talking… 
Thanks to everyone for your replies! I have a question, what are the UV Earmolds?
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I find I was always adjusting hard ear moulds but soft ear moulds, I never have to adjust.
It’s a personal thing. I have soft moulds and they stay in all day without touching even though I have a lot of movement through my jaw
i also wear the soft moulds… i tried the hard ones and they hurt my ears… I play a lot of sports and never have a hard time with them staying in place