Well I certainly don't claim to be a expert, but after observing and listening I would say yes when they can see it from a distance is always better. I have saw a booner get taken on film over a old archery target so that shouldn't be a hugeproblem but not my preference.

Doe's will usually be real nervous about doe decoys and alot of times can spoil your hunt. However I have had 2 does different hunts come right into the decoy while not spooked but definetly curious although they came from up wind. If your going for bucks onlyI'd say a buck decoy would fit the bill.
A general rule I have read is buck decoywill attract bucks and a doe decoy will attract both.
And make sure the decoy is SCENT FREE very important or your hunt will be over very quickly. Rubber gloves then spray it down. I didn't use any scent but that may change as it gets closer to the rut.

Oh almost forgot a buck decoy should be angled or facing you. Bucks will approach usuallytowards the head and try to intimidate the intruder. Does I have seen most guys and myself angled or facing away.
And set up the decoy where you give yourself a shot if the deer hangs up 10 yards away from the decoy. Not uncommon. Or so I have read. lol

Good luck and let me know any experiences you have. I really am liking this decoy thing especially now like you am hunting land that I can utilize a decoy from a distance.