G4 ACFT DEPARTING ON PUBLISHED PROC. DEP CTLR ASKED HDG; ASSIGNED HDG AND ASKED WHY FLC WAS NOT ON 060 DEG HDG. BECAUSE THE PUBLISHED PROC IS CONFUSING THE FLC HAD COMMENCED TURN DIRECT PXR WHEN OUT OF 4000 FT.

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DEPARTED DVT ARPT VIA IFR DEP PROC; RWY 25L AND TURNED TO A HDG OF 060 DEGS. WE PASSED 4000 FT GOING TO 5000 FT ABOUT 1 MI PRIOR TO INTERCEPTING THE PXR 336 DEG RADIAL. SINCE WE PASSED 4000 FT AND STILL ON THE PROTECTED SIDE OF THE 336 DEG RADIAL (W); WE TURNED R TO GO DIRECT TO PXR. WE MUST HAVE STILL BEEN BELOW PHX RADAR BECAUSE THE CTLR ASKED OUR HDG. I SAID WE ARE NOW DIRECT TO PXR. HE TURNED US N AND ASKED WHY WE WERE NOT ON A 60 DEG HDG. I SAID WE WERE ABOVE 4000 FT AND HDG TO THE VOR PER THE DEP PROC. HE SEEMED CONFUSED. APPARENTLY HE EXPECTED US TO TRACK NW ON THE PXR 336 DEG RADIAL. BUT WE WERE ALREADY ABOVE 4000 FT WELL PRIOR TO REACHING THE 336 DEG RADIAL. AFTER READING THE DEP MANY TIMES; I STILL FEEL THAT IT IS NOT WELL WORDED AND IS CONFUSING. NOT FOR LOWER PERFORMANCE ACFT BUT; WHEN AN ACFT CAN REACH 4000 FT MSL WELL BEFORE INTERCEPTING THE 336 DEG RADIAL; IT IS UNCLR THAT YOU MUST TURN L. THE DEP ASSUMES THAT YOU ARE ALREADY TRACKING NW ON THE 336 DEG RADIAL PRIOR TO REACHING 4000 FT. I THINK THE DEP SHOULD BE REWRITTEN.