This is so trivial but must to brought to attention to serve the greater good of the world of trivial, mindless things.
"Grande" or medium sized blended beverages are NEVER as good as tall/small or venti/large. This holds true of nearly all frappuccinos and smoothies. I've never been a barista but there is something off about the taste in medium sized frozen beverages. Take Strawberries n' Creme for example. You get a tall SCF and it's delicious. You always wish you had more and didn't get to the whipped cream on the bottom so fast. So next time you try a grande. HUGE mistake because they don't put enough flavor in it. It's like they put just the right amount in a tall, more than enough/too good to be true in a venti, but cannot commit to putting too much flavor in the grande. Bleh.
This same law holds true of Smoothie King. I normally order the small 20oz Angel Food, but this time I got a 32 oz/medium one. I walked away so disappointed because it lacked so much of the strawberry banana flavor it should've had. I stopped at Michael's work and gave the rest to him. Men don't discriminate.
So I've concluded that medium/grande is a waste of time, money and calories. Be conservative and get a small beverage or go all out and get a venti. But never in between.