Adding Sakura helps the old sannin. The old Sannin kill her quickly and boost there morale. Or her uselessness effects Sasuke and Naruto. In the end Naruto/Sasuke still solo
Um... even SM Naruto and MS Sasuke low diff the Sannin. Do i have to explain why?
To make this fair:
Make it Hebi Sasuke.
Make SM Naruto unable to summon more than 3 clones and cast more than 3 Rasen-Shuriken.
Restrict Katsuyu for Sakura.
Jiraiya starts in SM.