I put the maroon spring in and it feels like i lost some top end rpm's and some acceleration from about 1/2 to top end.
going back to stock for now

 

The maroon is for mudders and rock crawlers that are trying to spind 29.5 OUTLAWS and stuff. If you want a good all around spring that you will not loose any top end go with the Dalton Blue/Orange or EPI Pink primary and maybe a black secondary if you are running 27s or larger..