First of all thanks to markl and kingpage to inspire me to make my own CAL! mod.
Second: sorry for my english , but I'm sure if somebody wants, he will understand what I want to say.
Of course these are mine subjective opinions, but I am sure that for those who don't want to open the earcaps, the solution on the last photo will radically improve the sound quality!
The CALs earcaps are maded from two parts and I suppose that different material than...