If the 9ers had to draft a WR, i think they would be better off with a big receiver, like Jaison Williams from Ore of Adarius Bowman from OK St.. We already have a gang of undersized, rail thin wr's, aside maybe from Battle, who can actually break a tackle or two.
Not saying i wouldn't mind the 9ers drafting Jackson if they had the chance though. But seriously, i hope he eats a biscuit or 2 though. I dunno if his anorexic ass can withstand getting blasted by an nfl safety. Then again, he has the speed and agility to burn damn near anyone.