I have the plates and brakes mounted. I am going on front and rear. how should I run my lower cable? what have others done?I am running the 990 on the bottom of the seat stays, I have a cable guide in the center of the top tube, thought about doing a london mod but would rather run og style cables rather than 2 cables w/knarps. any suggestions? any one else done this? should I just drill my frame?

You can use the cable guide on the frame to put a london mod but since you want regular gyro cable put a "adjuster" on the cable guide. You dont need to drill or weld anything. I have done this on my Haro and the cable guide was strong enough to hold the pressure.

Knarps work to make the top cable shorter. But I use a dual top cable instead. You can get it from Dragonfly or Snafu.