For me a vine is too stiff and will break if they push too hard.
Put out 3/4" - 1.0" manilla hemp rope hanging from a branch over a scrape area back 3-4' from the licking branches. On the rope tie 2 knots one at the end and one up 12" and hang the lower knot so it is at eye level.
The rope placed back allows them to approach the licking branches and get comfortable and the rope lets them rub, lick, etc. rolling all their head, glands, etc. around as they are aroused and want to leave scent.
For me, i want the mature bucks to make this move forward, concerned with the little guys tingling the licking branches.