I kinda agree. If I were the installers I would put in System Sensor SRLs replacing the Horn strobes while keeping the SRs and put SPCWLs everywhere, then for the gym and the cafeteria I would Put In SPSRLs. The new areas can have SPSCWLs and if it’s on the wall, SPSRLs with there remote strobe counter part. I would replace the P2RKs with the SPSRKs and replace the SRKs since they have been outside for years. That’s how I would make the system if I was incharge of the upgrade. So they won’t waste as much money as they did.