I was curious to see what the past winter had done to me so I attempted the time trial again today. I didn't feel myself riding strong, but was able to keep pedaling without unclip. The result was 0:18:48, slower than the previous 0:18:25 on 7/29/2007 or 0:18:10 on 7/14/2007. It looks like continuous riding throughout the winter didn't really help me to improve, speed-wise.
The new Juicy brakes worked great. The pads still need to be broken-in, though.
2008.04.16 update: 0:17:45 with 32x16 gearing on the Vicious.