L30 CTLR DESCRIBES HVY DEP TFC AS SUPVR SUGGESTED USE OF VECTORS IN LIEU OF RNAV DEP PROCS BECAUSE OF UNEXPECTED TFC VOLUME.

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DUE TO L30 TMU/MGMNT NOT BEING AWARE OF INCREASED ACFT TFC IN THE AREA; TWR WAS RUNNING MAJOR DEP DELAYS. THE SUPVR ON DUTY AT L30 DECIDED IT WOULD BE A GOOD IDEA TO STOP USING OUR VAUNTED RNAV/GPS DEP PROCS; AND INSTEAD HAVE OUR TWR 'FAN' DEPS OFF THE ARPT BY ISSUING THEM HDGS THAT DIVERGED BY 15 DEGS OR MORE; DEPENDING ON THEIR RTE OF FLT. THE SUPVR TRIED TO TALK ME INTO ALLOWING THIS SEVERAL TIMES WHILE I WAS WORKING DEP; AND I POLITELY DECLINED EACH TIME. THEY FINALLY FOUND AN FPL THAT VOLUNTEERED TO WORK THAT WAY; AND THEY MOVED ME OUT OF POS. THIS WAS POTENTIALLY A HAZARDOUS SITUATION SINCE THEY WERE MAKING UP THE PROCS AS THEY WENT ALONG. IT IS ALSO VERY INTERESTING THAT AFTER YRS OF PUSHING THESE RNAV PROCS THAT THE DAY THEY FACE UNUSUAL DELAY DEMAND; THEY THROW THEM OUT THE WINDOW AND REVERT TO VECTORING ACFT OFF THE ARPT. HOW CAN THEY PUSH RNAV PROCS AS THE MOST EFFECTIVE WAY TO DEPART LAS; THEN THROW THEM OUT THE WINDOW AT CRUNCH TIME? THEY SHOULD NEVER HAVE PUT ANY CTLR IN THE POS TO WORK DEPS USING UNTESTED; 'MAKE-IT-UP-AS-YOU-GO-ALONG' PROCS.