Hey guys, I'm in the process of recurving my dizzy. I did this many years ago with a recurve kit from H-O Racing still, lol, but want to recheck everything. I found the info below with the kit I bought, but not an expert and don't know exactly what it means. Can use your help with this.
There are 3 different kinds of springs with the kit: Gold, Black and Silver.
What does the below mean??

Gold/Gold400-2600

Silver/Silver800-5000

Black/Black1000-6500

Gold/Silver600-3600

Gold/Black1000-6000

Black/Silver1000-6000