So digging some more, here are some resources regarding awarding the odd chip for the low hand in Stud/8:
RROP: Section 10 (Seven-Card Stud High-Low) #9: When there is one odd chip in the high portion of the pot and two or more high hands split all or half the pot, the odd chip goes to the player with the high card by suit. When two or more low hands split half the pot, the odd chip goes to the player with the low card by suit.
IFP Rules of Poker (Odd Chip): ... In high-low split games, the high hand receives the odd chip in a split between the high and the low hands. The odd chip between tied high hands is awarded as in a high game, and the odd chip between tied low hands is awarded as in a low game.
Thomas McGee's ROPE also uses similar language.
Chuck Ferry, The Complete Poker Room (7 Card High Low Split): (8 or Better): ... When splitting pots the odd chip goes to the high hand. In ties the odd chip goes to the high card for the high hand and low card by suit in low hands.
But:
Hilton Poker Rule Book (Odd Chip) A35: b. On a sub-division for a direction, the player with the highest-ranking card in his hand by suit gets the odd chip. If more than two players tie, and there is more than one odd chip, no player may receive more than one odd chip. The player with the second-highest card in his hand by suit gets the second chip, etc.
And arguably somewhere in between (e.g. no specific mention of odd chip for the low half of a Stud-type split game):
FIDPA (Odd Chip) 77.2: In Stud games, when there are two or more hands that have identical values, the 'odd chip' will go to the high card by 'suit ranking.'
(i) In High-Low split games, the 'odd chip' will be awarded to the high hand, if there are two or more high hands with identical values, the 'odd chip' will go to the high hand by 'suit ranking.'
In Low games, the 'odd chip' will be awarded to the lowest hand by lowest 'suit ranking.'
Cooke's Rules (Odd Chip) 9.18: ... the odd chip... will go to the high card by suit in stud games for high and to the low card by suit in stud games for low and to the winner of the high hand in high-low split games.
WSOP (Awarding Odd Chips) 71.: The odd chip(s) will go to the high hand. ... In stud-type games, the odd chip will go to the high card by suit. ... In Omaha/Stud 8 or Better, the pot will be split down to the lowest denomination chip in play. If an odd chip exists as a result from the first split of a pot, it will be awarded to the high hand. If an additional odd chip results from the split of the low hands, it will be awarded to the Participant in the worse position.
Personally, I think "high card by suit for high hands and low card by suit for low hands" in a hi/lo split stud game makes the most sense intuitively. But perhaps I'm missing something.