This has been my experience. I was always messing around with my C1's when I first starting using them. They were my first in ears. However, on a recent trip all I noticed was the sweet sounds coming from them.
I am really enjoying mine.
"You're right son, this is just like being at the movies! Now get over here and kick me in the back of the chair again."
Living Room HT:
4 KG1's Stuck in the Ceiling; KV2 Ctr (w/klipsch badge mod); 50" Panny Plasma; Yam 5560; Sony 5 Disc Upconvert DVD/CD; DTV HD DVR; Crap JVC Sub; Harmony 550
Bsmnt HT/2 CH:
CW II OO Mains; H2 OL Center; H2 BR Surrounds; Pro-Ject TT; Yam RX-V1400; SVS PB12-Plus/2; Yam 5 Disc CD; 2 36" CRTs; Infocus SP 5000; DTV for all 3; Sony 5 Disc Upconvert DVD/CD; Karaoke; Dreamcast; PS2; 2 Wii's; Harmony 550