Does anyone have experience with a 120mm fork on an ASRc or ASR?

I have an 09 ASRc with a 100mm Sid, but am toying with the idea of swapping it out for a little more travel. I know it will change the HA slightly and make the bike a little less "race" oriented (which is ok because i don't race). Has anyone ridden an ASRc with 120mm fork? How does that 20mm change the ride characteristics and handling? Thanks