Fork springs - cutting them makes them stiffer, no need for aftermarket springs?

[kebab19]

Mine's a '99 model (longer than 2000 onwards models as no fork cap preload adjusters) & they are dual-rate.  About 325mm long, the wider coils form about 200mm of the overall length and the tightly wound coils about 125mm. So whats that, roughly a 65-35 % length split? By contrast the VFR springs had a much shorter area with the tighter coils, more like an 80-20 split.
I'm wondering if Yamaha got the ratio wrong for this bike, and why....perhaps they grabbed the springs off another model?

I also prefer a linear spring setup myself but not for the £85 K-tech are looking, my VFR750 springs were £9.49