Considering Saitama's speed is racked up to 18 billion x FTL (in this wiki) (with Kenshiro at 30x ftl max) wouldn't Saitama have a massive advantage in this fight? Isn't there a possibility of Kenshiro getting blitzed without Muso Tensei activating assuming both are starting at base? Thirdly, considering Saitama broke through mental dimensions
(which can't be seen by,
humans), shouldn't it be more likely that he can interact with Muso Tensei considering the nature of OPM so far? It seems to me Saitama takes this bout more often than not.
And if this is a matchup with both opponents having prior knowledge Saitama's absurd speed advantage should allow him to Zero Punch ( which Ken shouldn't precog due to it being a reversal of causality), before Ken can use his own hax on Saitama, regardeless whether or not Ken has more ways of winning.