due to a slight stuff up (an ordering problem being corrected) I have ended up with red overhead and standard springs for my new C2 (never run one before).

The brushes are these:

http://rc4less.safeshopper.com/43/463.htm?413

Would using both red springs have a negative effect/any effect on this motor?

I can take a green standard spring from my Orion Element if it would be better for the C2.