I don't know if you caught the patrol assignments, but Troop 3 had up to S-13, M-6, N-6 and heard S-19, M-8, N-8, and these are new. Probably new Tollway patrol numbers, but will take some additional listening to confirm.I think you're on to something about the Dist. 15 unitsHeard the former 15-175 (RID 15175/16175) go 10-41 as "3-249" on Troop 3 Southwest and say that his "portable still has a District 15 ID"