Will do. ZG1000 on left
I am not a spring expert, but you may be surprised by the 2 springs.
Normally, the flatter the angle of the coil, and the closer the winds,,, the "weaker" the spring.
In this case, the ZG-1200 has much flatter coils.
I can see the wire size is thicker, but unsure what the final result will be.
By the way, you could have stiffened up your stock spring for $0.00 by removing some of the coils.
I did this on mine and it worked very well.
While your looking at this, consider installing Emulators.
They will help you control the damping in the front.
Ride safe, Ted