info about fcs plugs!

What is the diference between center plugs and sides  ...besides the the r and c on it?

the cant built in to the plug, the rails are standard 3 degree cant built in and can be adjusted to your liking by you, center has a 0 degree cant, as to the best of my knowledge. turn the plug over and there is a littler number molded into it there you can see the cant; this is the same with the fusion boxs also

OK Thanks 2tall!

Thanks 2tall, I never looked at its bottom before. I think Im using knock-offs !

now that the fcs patent has expired there are a lot of chinese and other companies copying fins and boxs, just google fcs knockoffs or anything you will find thousands of fins exactly like fcs but under a different name; the new plugs have the fcs logo printed on them in white