Been using Tusker broadheads formerly Davies Broadheads for 30 years , they are the most widely used broadhead here in Australia , John Tietsel the owner is a stand up fella and a prolific bowhunter . I modify the Concordes tip into a Tanto or Diamond profile as I have curled them on rocks and tree's before - never hit bone hard enough to curl the tip though it's a matter of time before that happens . They are my favourite Tusker broadhead next to the Aztec . The Delta's seems to be the most popular head down here . Sharpen them with a car body file mounted on a pice of scrap timber , fastest most efficient way I have tried .
regards Jacko