wensel woodsman broadheads are pretty much all i use.
without a doubt, 3 blade heads are by far much easier to sharpen than 2 blade or 4 blade heads.
just lay the head down facing forward on a mill bastard file's front end, push down, push forward.
the 3 blade angle's already figured out for ya - not so with a 2 blade, which is easier to screw up ... unless you have a KME sharpener!
as far as broadheads not "sharp from the factory" - NEVER EVER expect a broadhead to be sharp.
and what trad bowhunter doesn't have a mill bastard file, and a fine sharpening stone or diamond file and piece of thick stropping leather??? or at least a carbide or ceramic shapener??? that's as important as a bow and arrow!!! at the very least, yer gonna hafta resharpen those broadheads somewhere down the line ... geez louise!!!
watch charlie lamb show ya how easy is it to get woodsman's hair shaving sharp ....
Wensel Woodsman Sharpening the Easy Way - by Charlie Lamb