C210 INBOUND TO SNA RECEIVED QUESTIONABLE SVC FROM SCT CTLRS RESULTING IN A POSSIBLE TFR VIOLATION.

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I HAD BEEN RECEIVING RADAR FLT FOLLOWING ON A FLT FROM FAT TO SNA. A SQUAWK WAS ASSIGNED OVER BAKERSFIELD AND SNA WAS IDENTED AS THE DEST ARPT. I RECEIVED CONSIDERABLE ASSISTANCE NAVING AROUND THE CLASS B AIRSPACE AND TFC IN THE EL MONTE AREA. ON A DIRECT RTE FROM FAT; WITH A SIGNIFICANT TAILWIND IT BECAME APPARENT THAT IT WAS GOING TO BE IMPOSSIBLE TO DSND FAST ENOUGH TO GET BELOW THE 4000 FT CLASS B SHELF S OF EL MONTE. THE CTLR SUGGESTED A 360 DEG TURN FOR DSCNT; BUT I PREFERRED TO SIMPLY ALTER COURSE TO THE E TO DSND BELOW THE 7000 FT SHELF. HOWEVER; THE CTLR ADVISED ME NOT TO CONTINUE AN EBOUND DSCNT DUE TO TFC BELOW ME AND AGAIN SUGGESTED TO CONTINUE THE L TURN AND ROLL OUT BACK ON A SOUTHEASTERLY HDG EL MONTE TOWARD SNA OVER. I LOWERED THE LNDG GEAR TO HELP STAY SLOW IN TURBULENT AIR IN A RAPID DSCNT. I AM SURE THE PAX WONDERED WHAT WAS GOING ON. IT WOULD HAVE BEEN VERY HELPFUL TO HAVE HAD A FLT DECK TFC DISPLAY SO I COULD SEE EXACTLY WHERE WAS THE TFC BELOW ME; THEN MAINTAIN VISUAL SEPARATION; AND PROCEED EBOUND UNDER THE 7000 FT LAX CLASS B SHELF RATHER THAN HAVING TO PERFORM A 360 DEG TURN. OVER EL MONTE; I WAS HANDED OFF TO ANOTHER SECTOR. I BELIEVE I WAS HANDED OFF ONCE MORE AND THEN TOLD TO MAINTAIN 3000 FT UNTIL PAST THE FULLERTON AREA. AT FIRST; I WAS SURE WHAT THE CTLR SAID; BUT THEN REALIZED HE SAID FULLERTON AND I REPLIED WITH THE NON STANDARD TERMINOLOGY 'GOTCHA.' THE SUBJECT INCIDENT OCCURRED AT THE S BOUNDARY OF THE FULLERTON CLASS D AIRSPACE AT 3000 FT HEADING DIRECTLY TO SNA. THE CTLR 'DUMPED' ME TELLING ME RADAR SVCS TERMINATED AND TO SQUAWK 1200 JUST AS I WAS ABOUT TO DSND INTO THE DISNEYLAND TFR. I COMPLIED AND IMMEDIATELY CONTACTED SOCAL ON 121.3; THE PUBLISHED FREQ FOR THE SNA CLASS C AIRSPACE. THAT CTLR GAVE ME A NEW FREQ; AND IT TOOK CONSIDERABLE TIME GET BACK INTO RADAR CONTACT. THE DISNEYLAND TFR SAYS OK TO PENETRATE UNDER ATC CTL; SO I WAS NOT PREPARED TO DEVIATE AROUND IT EXPECTING TO BE UNDER ATC CTL. IS 'DUMPING' AN APPROVED ATC PROC SECONDS BEFORE ENTERING A NEW AIRSPACE AREA? I FIND IT VERY UNPROFESSIONAL AND WOULD LIKE THE PROCS CLARIFIED. WHAT IS THE APPROPRIATE ACTION BY A PLT WHOSE INTENT IS WELL KNOWN? DOES ATC EXPECT THE PLT TO MAKE A RADICAL CHANGE IN COURSE TO AVOID PENETRATING AIRSPACE HE/SHE HAD ALL INDICATIONS HE WAS CLRED TO ENTER? CANNOT ATC BE REQUIRED TO GIVE A STANDARD MINIMUM TIME ADVANCE WARNING THAT A HDOF WILL NOT BE ACCEPTED?