M226 guarder spring upgrade

I'm planning on putting a guarder 150% recoil and hammer spring in my KWA M226. Specifically the one for the MEU 1911 since I've heard that's the one that fits. Is there any advice or thoughts on this. Has anyone put an upgraded recoil and hammer spring in one of their GBB's? Also what is the point of the hammer spring, if I don't install it along with the recoil spring will there be problems? If you have anything informative that you know from experience or fact from another please tell me.

How did it go, I'll be doing that also to my 226. Let me know.