The throttle pressure linkage is slightly out of adjustment. Try shortening (or lengthening) the adjustable rod connected from the carburetor linkage to the bellcrank on the transmission. This controls the point where upshifts and downshifts happen. More throttle pressure delays the upshift until a higher speed is reached, but it also will make the downshivt happen sooner. Try reducing the idle speed to help with the shift to 1st. gear at a stop, and drop the throttle pressure to make the upshift happen sooner. The "Controlled Coupling" Hydramatic (No, it's NOT a Jetaway) is VERY picky about throttle pressure adjustments
Jerry

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