I wouldn't waste an app for 40,000 points. There is at least a 50,000 offer floating around out there, but even then... But if you really want HH points I might suggest going for the BofA or BofHawaii Hawaiian Airlines card that each offers 35,000 Hawaiian miles which you can then transfer 1:2 into Hilton. Get both of those cards and you've got an instant 140,000 HH points which can get you a few nights in an upper tier Hilton.