If I give BCH a 0.1% chance of victory, I should hold 0.1% of my portfolio ($ value) in BCH not 50%.
if you give bch a .01% of victory I don't really consider that uncertain. Uncertain in this sense implies 50/50. Regardless the optimal strategy is to converge the future winning coin as fast as possible as its determined.
Those that converge on the winning coin first have the most to gain or not to lose