A DSNDING MD80 FLC GETS INTO A VERBAL EXCHANGE WITH ZJX CTLR ABOUT SLOWING DOWN AND DSNDING WITH RESPECT TO PRIORITIES AND TECHNIQUE N OF OMN; FL.

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WE WERE INITIALLY ISSUED A DSCNT TO CROSS THE LAMMA INTXN AT 12000 FT AND 250 KIAS (AS PER THE BITHO 7 ARR TO MCO). I INITIATED THE DSCNT AT 320 KIAS AND PLANNED TO SLOW ONCE LEVEL AT 12000 FT MSL. AS WE DSNDED THROUGH APPROX FL220; THE CTLR INSTRUCTED US TO SLOW TO 250 KIAS AND STILL MAKE THE XING AT LAMMA AT 12000 FT. THIS WAS GOING TO MAKE XING LAMMA AT 12000 FT A LITTLE TIGHT SO I FULLY EXTENDED THE SPOILERS AND PROGRAMMED THE DIGITAL FLT GUIDANCE PANEL FOR A 250 KIAS DSCNT. THE AUTOPLT PITCHED FOR APPROX A 1000-1200 FPM DSCNT AND WOULD FLY 250 KIAS ONCE WE ATTAINED THAT SPD. AS THE ACFT SLOWED THROUGH 260 KIAS; THE CTLR ASKED WHAT OUR SPD WAS. MY FO RESPONDED; 'SLOWING THROUGH 260 KTS.' THE CTLR IMMEDIATELY RESPONDED; 'XYZ; I NEEDED THAT SPD RIGHT AWAY; IT WASN'T AT YOUR DISCRETION!' I RESPONDED THAT 'WE STARTED SLOWING RIGHT AWAY BUT WE CAN'T GO DOWN AND SLOW DOWN AT THE SAME TIME.' HE RESTATED THAT WE SHOULD HAVE TOLD HIM IF IT WAS GOING TO BE A PROB. WELL; IT WASN'T A PROB; WE JUST HAD TO SLOW FIRST AND THEN DSND PER HIS INSTRUCTIONS. THERE IS NO REGULATORY REQUIREMENT; TO MY KNOWLEDGE; AS TO HOW QUICKLY WE MUST SLOW THE ACFT. IF HE NEEDED THE SPD RIGHT AWAY; THE INSTRUCTIONS SHOULD HAVE BEEN TO SLOW TO 250 KTS AND THEN DSND TO MAKE LAMMA AT 250 KIAS. THE ABOVE CONVERSATION DEGENERATED ON BOTH ENDS. I DID NOT ENJOY BEING TALKED TO LIKE A STUDENT PLT AND HE WAS OVERWHELMED WITH TFC. WE MADE LAMMA AT 12000 FT WITH NO PROB AND HAD NO FURTHER CROSS WORDS. THIS WHOLE EXCHANGE RESULTED IN DISTRS FOR MY CREW; THE CTLR; AND PROBABLY OTHER ACFT ON THE FREQ. I FEEL THAT HAD THE INSTRUCTIONS BEEN MORE CLR; THE ENTIRE DISPUTE COULD HAVE BEEN AVOIDED.