Last year I used the cheap walmart target because I knew whatever I was going to shoot at was going to get shredded. I simply bought one set of replacement blades and shot a group of mixed field points and broadheads. Just make sure you are shooting the broadheads first in the group so you don't end up slicing vanes off. I typically used 2x broadhead tipped arrows and 2x field point tip arrows in the groups and if they grouped the same at all ranges (they did) then I didn't practice with them anymore and replaced the blades and saved them for hunting season to start.