Hey Pat, dont let that funny yellow sawdust contaminate the yew! looks good, did you remove much sapwood? I dont worry about the sapwood unless it is real thick say over 3/8" especially on a heavy weight bow, I dont think it is detrimental to performance...as if one could tell with a 100+ pound bow. be careful on making the tips narrow too soon, I have seen some of the elb's that ended up "whip ended", get the tiller close first and leave some depth to the tips when you narrow them then remove to tiller. are you going to put on horn tips? looking forward to seeing the completed bow.