We aren't really answering your question are we. No it shouldn't hurt your bow, as long as you are at or over 5 gpp. The only thing is, that you might not get as good performance with those arrows, as arrows with the proper spine, since they might be slightly under spined. Like I said earlier you can add weight to the back of the arrows to increase your spine, or go lighter up front.

(PS. More technical guy correct me if I'm wrong)