If getting "the most out of your CIEMs" involves custom wraps, your earphones do not properly fit your ears. Before investing in silly wax-magnet wraps like Comply's Custom Wraps, get a re-fit.
“I mainly became interested in Comply’s Custom Wraps after I struggled to maintain a consistent seal with my CIEMs. I was finding that before using them I would have to adjust the CIEMs multiple times over the course of an hour and that the balance between Left and Right seemed off - particularly with the bass presence and extension of the trebles. Applying the Custom Wraps provided an immediate remedy and became worth their weight in gold! Now with the Custom Wraps I don’t need to alter my CIEMs at all so I’m a very very happy man. I do have to say that using the Custom Wraps does come with one caveat. This is that the sonic performance does slightly change. Whilst the bass becomes much more rounded and powerful, its attack becomes moderately slower, and this attack descriptive stands the same for the trebles along with a slightly reduced treble extension. On the other hand the sonic improvement to the instrument separation/staging is certainly desired and you just have to weigh up what you want from your CIEMs. Personally I feel that the Custom Wraps have made my life a lot easier and have heightened the performance of the CIEMs in question so I’m a very happy man.”
Edd Harris's essay about a product whose only utility applies to poorly-fitting custom-fit earphones, deserves to have been written by Joseph Heller.
Source: Comply Custom Wraps Review