AN ARTCC CTLR COMPLAINS THAT ACR'S ARE NOT MEETING A XING RESTR AT SWEDE INTXN BECAUSE THEY APPEAR TO USE LESS THAN A STANDARD RATE OF DSCNT AND DO NOT PLAN FOR THE EXPECTED XING ALT.

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NUMEROUS ACR'S ARE DSNDING AT NONSTANDARD RATES OF DSCNT AND ARE UNABLE TO MEET XING RESTR. IN PARTICULAR; THE SWEDE 1 ARR HAS A RESTR OF 'EXPECT SWEDE AT OR BELOW FL230.' YET; NUMEROUS TIMES ACR TFC IS NOT ABLE TO COMPLY WITH THAT RESTR BECAUSE THEIR PREVIOUS RATES OF DSCNT WERE NOT SUFFICIENT. A MAJORITY OF THE TIME; THE ACFT ARE DSNDING AT 750-1000 FPM; WHEN THE NORMAL DSCNT RATE IS 1250-1750 FPM. THIS CHANGE IN OP IS CAUSING SIGNIFICANT ADDITIONAL WORKLOAD BECAUSE IF AN ACFT CANNOT MEET A RESTR; THERE IS COORD WHICH NEEDS TO BE DONE IN A TIMELY MANNER. ON AT LEAST 2 OCCASIONS; I HAVE HAD TO TURN ACFT 45 DEGS OR MORE BECAUSE OF THEIR LESS THAN NORMAL RATES OF DSCNT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE INCIDENTS OCCUR SEVERAL TIMES PER DAY. THEY MOSTLY INVOLVE ACFT WITH FMS NAV SYS. ONE ACR CAUSES THE PROB MORE THAN OTHERS. EVEN THOUGH THE STAR (SWEDE 1 ARR) SHOWS AN EXPECTED XING ALT; IT IS NOT ASSIGNED UNTIL ENTERING THE RPTR'S SECTOR. AFTER THE HDOF INTO THAT SECTOR; OFF-COURSE VECTORS ARE NEEDED TO MAKE IT POSSIBLE TO MEET THE XING.