switchback hunter

I have hung a stand on top of a ridge the stand is 15 feet off the ground and there is a very good trail coming from a bedding area through a funnel up on the ridge were there is alot of acorns my question is the trail is 40 yards from my stand down hill were the deer would be standing i would be about 35 feetbelow mewill the shot still shoot like forty or will it shoot less like 30. reason i hung here is there is a good rub line on the other side of the ridge wich is only 20 yards away and about 25 feet below me. if it help my setup is

mathews switchback
29.5 draw
65lbs
shooting about 285fps

thanks for the insight

GR8atta2d

38.26 yards