None of the above is necessary. I haven't done any of them until this year when I bought some rage broadheads for the hell of it. Seem to work good on the target tests and fly the same as my muzzys. I think I'll test em out this year and if they work, I can join the ranks of those who say I cant hunt without them. lol Back to point, no scent lock for me, just scent control but more power to those who enjoy it and buy it. Whatever works for ya!