Going from any speaker that you have had for years and have gotten used to the sound of them within your system and then going to a totally different design will always be an adjustment and that was the same for me going from Quad ESL's to the Sapphire M3's. A week's time is zip, it took me a month to figure out setup, toe-in, etc, spikes no spikes, and such now after a year I don't miss the Quads at all. Change is always difficult because in audio we always compare what we are used to hearing to something we inserted in our system now, and speakers are always a major player in that regard. Burn-in time was long, and I am not one who plays them 24/7 to burn them in, I just play music when I wanted to hear it, so my time of the speakers settling in was months. Even yesterday I was listening and I said this recording sounds better than it did a few months ago. Glad I hung in because today I have one of the better sounding systems that I've owned in 35 years or more in this hobby. Spatial's are a big part of it.