I've got stockers, 412s (lowered 1" and HD springs) and 440s (standard length). The difference in the stock and 412s is noticeable, but the difference between the 412's and the 440's is, well- shocking. It really is staggering.

I also have the Progressive fronts, and the difference is also very impressive.

2002 Bandit 1200/ GSXR cams/ 1277 BB Kit/ Holeshot header and can/ 38mm flatslides/ a good head/lotsa hp/lotsa tq- lots of rear tires...