First of all, my argument never relied on the Frogs in the first place and summoning the Boss Toads is something that can be done instantly.
Second of all, SM Naruto will not use FRS outright when Yamato already established that Naruto's Futon is disadvantageous against Sasuke's Katon, so Naruto knows that he'll have to rely on a hit to land an FRS which he easily has the feats to accomplish this.
Hebi Sasuke cannot keep up with SM Naruto. SM Jiraiya could easly handle each of Pain's Paths 1v1 whereas Kakashi with a superior Taijutsu couldn't overwhelm Deva Path in CQC and SM Naruto is SM Jiraiya's superior. Given that, Hebi Sasuke would need CS2 to even compete with him which even then, never boasted as large of a boost as Sage Mode did for Jiraiya who had comparable stats to Hebi Sasuke. Nonetheless, you agreed that Frog Katas overwhelm Hebi Sasuke and considering Frog Katas could one-shot Pain's Paths who can block SM Jiraiya's hit, I'm going to say that Frog Katas one-shot Hebi Sasuke.
And no, Sasuke needs CS2 to keep up with SM Naruto which consumes a large portion of his Stamina and cannot be maintained for that long, but time probably isn't a factor when SM Naruto can likely beat him in under 5 minutes.