Any thoughts on the best way to stack this with Citi 4NF? Split off the extra charges (meals, etc) so you get 24X on those, while still covering the room and taxes with the Citi card? Would the Hilton be keen to split the expenses that way? Think it would work? I have two stays coming up on 4NF and while the 4NF cashback of $150 can't be beat, the $800 for the stay would result in about 17k points with the Aspire (14X Hilton spend (on the whole $800), plus another 10X for the bonus on the room rate ($600), or around $90. It's been a great quarter to visit the Hilton's, especially when compared to the lame SPG/Marriott promo (WOW 250 EXTRA STARTING THIRD NIGHT, and different clock for SPG and Marriott too).