With your set-up now it would be advantageous to shoot 125gr BH's. you will add some weight, but more importantly you will add FOC. I have done some EXTENSIVE testing on FOC and penetration and what I have found is that an arrow with better FOC even though it may have less KE will out penetrate and arrow that has more KE but less FOC. Make sense? In your case you will gain KE and FOC, best of both worlds. one reason you may have switched years ago was because there is more of a selection of 100gr BH's than 125gr BH's.