Does your clutch slip at all? If it is on its way out it will begin to slip under engagement. You will notice it a lot if the clutch can't keep up with your shifting. Not being able to chirp gears, or the rpms falling unusually far when shifting.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget