MO20T PLT CONCERNED WITH MIA APCH SEQUENCING.

Narrative

WHEN COMING INTO ARPTS UNDERLYING THE MIA CLASS B IFR; IT IS STANDARD PROC FOR MIA TRACON TO DSND PISTON ACFT (WITHOUT REGARD TO THEIR TURBOCHARGED STATUS) TO 2000 FT MSL APPROX 40 NM OUT FROM THE ARPT. THIS IS BOTH DANGEROUS AND TURBULENT FOR AN EXTENDED PERIOD OF TIME. HAVING HAD AN ACFT EXPERIENCE AN ENG FAILURE INFLT RECENTLY; I AM PARTICULARLY SENSITIVE TO GLIDING DISTANCE AND RISK FACTORS. I HAVE SPOKEN WITH MIA TRACON ON THE TELEPHONE; AND THEY ADVISED ME THAT THERE IS NO WAY TO AVOID THIS; DUE TO TFC DEPARTING AND ARRIVING FROM MIA AND FLL. THEY WENT ON TO NOTE THAT AT LEAST I COULD CLB OUT TO MY REQUESTED ALT QUICKLY; SINCE MY ACFT IS A 'FAST CLIMBER.' I NOTED THAT MY ACFT CAN DSND MUCH MORE QUICKLY THAN CLBING. CLRLY THERE SHOULD BE AN IFR CORRIDOR THAT CAN BE DEFINED WHERE A NORMAL; OR STEEPER DSCNT COULD BE MADE INTO ARPTS LIKE OPF. THEY ARE TREATING MY ACFT DIFFERENTLY FROM TURBOPROPS; EVEN THOUGH I AM TRAVELING THE SAME SPD; AND CAN DSND AS QUICKLY. THIS IS A DANGEROUS AND UNCOMFORTABLE SIT THAT MAKES FLYING INTO THIS AREA A NIGHTMARE FOR ME. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR MOSTLY IS CONCERNED WITH ATC PERCEPTION OF ACFT CAPABILITIES. MIA ATC HAS ADVISED HIM THAT OTHER IFR ACFT ROUTING INTO PRIMARY/SECONDARY ARPTS PRECLUDE DEVELOPMENT OF HIS SUGGESTION OF A SINGLE ENG; HIGH PERFORMANCE ARR CORRIDOR INTO OPF ARPT.