Is fitting not an issues between them 2 ?
Yes indeed it is! I only managed to get a perfect fit on the EX1000 a few months a go thanx to the Final E tips and I have owned them for 8 years
Currently I find the fit of the IER Z1R sort of a nightmare as I`m always aware that they are there. I have ordered smaller Final E tips and also Spiral Dots to try and get a better fit on them..