i like h3 if hes on the level of laying down a legit hand when u rep a narrow range in a bvb spot then go for it. i don't think your opponent would ever expect you to c/r bluff this river but rather just fire the last barrel (not totally certain about this....) which is why I like it. it looks a ton stronger than firing 3 shells.

ur range isnt that narrow u could have JJ,QQ,66,6x,T9. though you could still have a decent amount of air tho at this point like AK/KT/XcXc but i would think some of these hands would just be expected to fire river some % of the time. you could also merge a lil with AA and pwn his ass if he wants to b/c KQ here. if you have a good solid aggressive image and are capable of shit like that then i think that would make this good.

btw I like h2 the most.