A RWY ASSIGNMENT CONFUSION FOR A FLC ARRIVING AT LAS; NV; ON THE TRAGR RNAV 1 ARR.

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WE WERE ON AN IFR FLT FROM BFI TO LAS IN A GULFSTREAM 11B. ON DSCNT INTO LAS; WE WERE GIVEN A CHANGE IN ROUTING FROM A FUZZY 5 TO A TRAGR RNAV 1 ARR. THE COPLT WAS FLYING; SO I DELETED THE FUZZY 5 AND SELECTED THE TRAGR RNAV ON THE FMS. THE FMS ASKED WHICH RWY FOR LNDG. I TUNED IN ATIS. WINDS WERE 190 DEGS AT 12 KTS GUSTING TO 20 KTS AND ALL RWYS WERE LISTED FOR LNDG USE; SO I SELECTED RWY 19R ON THE FMS FOR THE TRAGR. WE WERE IN MODERATE TURB AND BUSY WITH ATC TURNS AND INSTRUCTIONS. I FIGURED WE WOULD PROBABLY BE ASSIGNED RWY 19R DUE TO WINDS. APCHING POVOC AT 9000 FT; I TRIED TO CONTACT FBO ON #3 COM FOR GND TRANSPORTATION. PREVIOUS CALLS TO THEM WERE UNSUCCESSFUL AND COPLT WAS MONITORING ATC ON #2 COM. I RETURNED TO COM #2 (LAS APCH) AS WE CROSSED POVOC INTXN. THE FMS SWITCHED TO CONDY AND THE COPLT STARTED A L TURN. ABOUT THE SAME TIME; APCH CTL ASKED US IF WE WERE TURNING TO CONDY. THE COPLT RESPONDED 'AFFIRMATIVE.' APCH RESPONDED WITH 'FLY 075 DEGS FOR VECTORS RWY 25L.' THIS ARR IS CONFUSING. THE ATIS LISTS ALL RWYS FOR LNDG; SO GIVEN THE WINDS; WE SELECTED RWY 19R AS A PROBABLE RWY. NO INSTRUCTION FOR RWY WAS RECEIVED FROM APCH CTL UNTIL POVOC INTXN. THIS DOES NOT ALLOW MUCH TIME TO REPROGRAM FMS. ON THE STAR; A 'NOTE' IS LISTED TELLING ACFT TO 'PROCEED VIA RWY 25L UNLESS OTHERWISE INSTRUCTED BY ATC.' I RECOMMEND THIS BE IN 'BOLD' TYPE. APPARENTLY; WITH THE LAST MIN CHANGE OF STARS AND THE EXTRA WORKLOAD (ATC; UNABLE TO CONTACT FBO) BOTH PLTS DID NOT SEE NOTE ADVISING RWY 25L. I WOULD RECOMMEND RENAMING STAR 'TRAGR RNAV 1 RWY 25L ARR.' I TALKED WITH LAS APCH AND OTHER ACFT HAVE HAD THE SAME PROB. BOTH CREW MEMBERS ON THIS FLT HAVE A TOTAL OF 60 YRS OF FLYING. BOTH AGREE THIS STAR; WITH ALL THE TURNS; SPD CHANGES; AND ALT CHANGES; LEAVES VERY LITTLE TIME TO WATCH FOR TFC.