I don't have any way to do a vid bro-I'll keep an eye out.If I remember correctly-there's a Jimmy Smith video that shows it.
Try just those 5 notes; Eb Bb( 4 th finger Eb to 2nd Bb) then 4 th to Db-quick slide down to D using just the 4 th-then the thumb on the last note.
The D is almost a grace note-bet the timing is messing you up