Maria --
By any chance are you giving Kahlua a snack at +8 or +9? I'm wondering whether a bit of food later in the cycle may help to drop the pre-shot numbers a bit.
Also, a head's up -- Kahlua is a long term diabetic (i.e., it's more than a year since diagnosis). With TR, numbers need to drop below 40 for a dose reduction for a long term diabetic kitty.