I bought my first trad bow, long bow, early this year and since been trying to find proper spine arrow, tip weight, along with trying to find my form. Currently Im grouping fairly well at 15, but my arrows seem to want to hit left. Im shooting a combination of 3555 goldtips, beman 400's, aluminum easton 500's. Im varing my tip weights from 125 to 145. All seem to be hitting about the same left to right. But, hears the question, what would you recomend for an arrow shooting out of a 45lb @ 29" draw montana longbow. I'm not sure if I should be shooting something else or if im on the right track?