The most challenging axis in my opinion is the roll axis of Super Heavy, if there is a roll angle error, the pins could not sit properly on the chopsticks and the whole booster slides off.
Just slap a buncha RCS on there, maybe a reaction wheel or two, and presto.
Source: Kerbal Space Program
Might as well chuck a full size engine on the side pointing in the yaw direction to be safe. I mean as long as you tie enough magical struts and cables to it I'm sure you are fine /s