crankset....I just got my flat fixed today and I asked the dude about my crank. Since my big-earl crank has the bashguard, it takes up speed. So should I exchange the bashguard for a 44 chain ring or change the middle 32 chainring for a 44 one with the bashguard. I like to go fast but will it be hard from a 22-42???? What would you do?