Don't know if next TC is the last one at which they can use HII's. But if it is, and if Sash wins the IC, he could give his HII to whomever is targeted by Jane/Holly/Chase, and he'd be in position to control the vote.
Does Holly know that Chase has a HII? I like Chase but don't give him credit to be able to strategically plan a counter-move against Sash. Holly could do it, I think, IF she's aware that there is a HII to use.
Personally, I'd like to see J/H/C recruit Fabio for a final four!