My etymotic HF2s are falling apart. I love their neutral sound whereby the lows, mids and highs are not accentuated, good enough for classical music, my main listening genre. Their sound isolation is also useful especially in noisy surroundings. Of course compared to my speaker (Yggdrasil-> Rag -> Monitor audio GX100) or headphone (HD800S) setup they are veiled and bass light. I was aiming for the UERR but the above reports seem to suggest that they are not as neutral as the now discontinued UERM. Should I still go for the UERR? My aim is neutrality with a speaker-like flat resolving sound without any major dips in frequency range. Should I instead stick to the etymotics and go for their flagship ER4P with ER4S adapter? I was also eager to get my hands on the GO V2+ as portable dac/amp and complete my ultimate portable setup. However it looks like LHLabs are still not delivering their product. I am also unsure whether the GO V2+ would be a good pairing with the UERR or ER4P/S If the UERM remains the gold-standard, is it feasable to buy a used pair and have the cutoms refashioned? Thanks for any useful advice.