fcs sidebites on a longboard

i just ordered a set of these and they mailed me all center plugs and no rail plugs. it is going to be a 2+1 setup. do you always use center plugs to sink the sidebites for longboards?

John, Negative. FCS has separate plugs for the side bites. They should have the letter R and a small arrow that points to the rail. You have to look close. The center plugs have a C. You definitely need the rail plugs for your side-bites since their template system is set up that way. (the slots are slightly offset in the plug.) Doug