C501 PLT BECOMES CONFUSED WITH CRQ ATCT SEQUENCING INSTRUCTIONS AND INITIATES A GAR.

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I (X) WAS ON A TWR TO TWR IFR FLT FROM SAN DIEGO MUNICIPAL ARPT (SDM) TO CARLSBAD MCCLELLAN-PALOMAR (CRQ) ARPT. ARRIVING AT PALOMAR; SAN DIEGO; SOCAL APCH TURNED ME OVER TO CRQ TWR FOR A VISUAL APCH TO RWY 24. UPON CONTACTING CRQ TWR I WAS INSTRUCTED TO MAINTAIN A L DOWNWIND FOR SEQUENCING FOR THE VISUAL APCH. NOTE: THE NORMAL TFC PATTERN FOR RWY 24 IS R TFC. I WAS TOLD TO EXPECT TO FOLLOW A COMMUTER AIRLINE (Y) SOME 3-4 MI ON FINAL. AT A POS ABEAM TO 2 MI ON FINAL; I WAS TOLD TO TURN BASE TO FOLLOW A LIGHT ACFT (Z) ON R BASE TO FINAL. AS I ROLLED OUT ON BASE I WAS TOLD SOMETHING LIKE 'CONTINUE ABOUT ANOTHER MI; THEN TURN R TO FOLLOW ANOTHER ACFT' OR SOMETHING TO THAT EFFECT. I WAS THOROUGHLY CONFUSED. I ASKED FOR A REPEAT -- NO ANSWER. I ASKED AGAIN -- NO ANSWER. I WAS NOW GETTING CLOSE TO TFC ON R DOWNWIND SO I HELD MY ALT (APPROX 1000 FT) SO AS TO CLR TFC ON R DOWNWIND. SOON AFTER; I WAS CLRED TO LAND RWY 24. NOW GOING AWAY FROM THE ARPT; I MADE A L 140 DEG TURN BECOMING ON A DOGLEG; 1 MI FINAL; STILL AT APPROX 1000 FT. I SELECTED FULL FLAPS AND FULL SPOILERS IN AN ATTEMPT TO LAND BUT WAS NOW BADLY DESTABILIZED; TOO HIGH AND TOO FAST; SO MADE A GAR. I WAS INSTRUCTED TO RE-ENTER R DOWNWIND; SUGGESTED TO FLY SLOW ON DOWNWIND FOR SPACING. I WAS SUBSEQUENTLY CLRED FOR LNDG ON RWY 24. THIS APCH AND LNDG WAS NORMAL. IN ALL OF MY 42 YRS OF MIL AND CIVILIAN FLYING; I HAVE NOT BEEN HANDLED THIS BADLY -- NOT EVEN DURING MY 972 HRS COMBAT FLYING HRS IN SE ASIA. NOR WERE MY 5 PAX VERY HAPPY WITH THE RIDE. AFTER FLYING IN AND OUT OF CRQ FOR THE PAST 4 YRS; I AM CONVINCED THIS IS A VERY DANGEROUS FACILITY TO OPERATE TO AND FROM.