like they said, mechanicals arent for everyone. i shoot them and have had good results. i shot 2 does with them last year. one left no blood trail and i was thinking of changing to fixed blades the entire time i was looking for her. when i rolled her over, it was a high hit and exit. the spitfires decimated her lungs. the other doe i shot a couple of weeks later just before the rut from a ground blind and she left a really really good blood trail, but died 20 yards from where i shot her. by the time realized that i hit her, she fell down. i shot her at 7 yards and couldnt see or hear my arrow hit. it all happened so fast, ya know?

i say shoot a couple of different designs and choose. i would reccommend choosing a broadhead with a solid bone-crushing tip, not a replaceable blade tip. i have a bad feeling that those will be weak if they hit a shoulder.

i shoot an lx set at 72 lbs and so does my friend. we both have the same sight, stabilizer, arrows, and rest. i shoot spitfires and he shoots Cabela's supershort fixed blade broadheads. and we both shoot three arrows touching at 20 yards. so it is all in the setup and the shooter taking the time to tune and shoot his bow.

when it comes down to it, as long as everything is uniform one shot to the next you will shoot good groups.