For Writers - Which Tense?

Today's tip is an answer to a question I received this week regarding tense...

Q. My critique group read the first few chapters of my YA. The main criticism they had was that I kept bouncing between past and present tense. One member told me I should stick with present tense because it's good for YA, but another said present tense wears the reader out and I should stick to past tense. I asked for a tie-breaker, but the other member said it doesn't matter as long as I stick with one or...