I'm like 70% sure the fork is pinned, and it's made for ICS for that reason. ICS is the only compression that won't pull the bottom of the fork from the forktube. SCS will do just that, and in result might break the fork.
well the way the district comp works it would pull it out anyway but if you wanna run scs just use a nut and bolt instead of a starnut if you still have the long allen key.