With 52% ownership of a web startup specifically belonging to a nontechnical cofounder (she would be the logical "leader" with the vision) is that who knows what will happen on a bad day. I've already shot down one suggestion of hers because it was irrelevant to the service we were going to offer. While a supermajority vote makes complete sense for important votes, 52/24/24 with the two 24% to the developers would be impossible on the less important votes if it was technical in nature and she just didn't get why they may be problematic/impossible.
I'd feel a lot more comfortable with a 52/24/24 split if only she knew more. But she's relying on us to provide everything design/development-related without being fully knowledgeable about it, and without us she's dead in the water.
She should be delegating all technical decisions to you. That's a part of being a leader. It requires leadership and knowing when to trust and delegate to your team.
I'd feel a lot more comfortable with a 52/24/24 split if only she knew more. But she's relying on us to provide everything design/development-related without being fully knowledgeable about it, and without us she's dead in the water.