When you buy progressive springs they come with a stiffer spring than stock[for P700]. I looked at a p650 at a dealer up here with the progressive on. It was on the loosest setting and it was really stiff. That made me think are your only 2 options really stiff or really really stiff? If a person just bought stiffer front springs wouldnt that make more sence? You would save about $90.

 

jsepp
dont knew much about springs , but i do knew that they have different rates as to compaction and retraction.
wanted some springs for our kilns at work, and contacted a spring manufacture in edmonton. well this guy knew less then i did. try contacting the manufacture im sure progressive can give you some good advise on this. most people use the progressive because of the prairie wanting to dive in high speed corners