Or as I pointed out, simply remove three out of every four pullups.

On second thought, that does make more sense. but before doing that the OP needs to know how many boards he has to take offline to eliminate the issue. This is a QUANTITATIVE ANALYSIS that yields vital information on

how to implement the solution. (3 out of 4 may be right but truthfully , how could you possibly know this is

the right ratio ? There's nothing wrong with pulling an answer out of your arse if it is correct. I do it all the time.

Almost everyone does. It's called a SWAG (Scientific Wild Ass Guess)

I just think it makes more sense to just take 10 or 20 boards offline until it works properly and then start adding

them back until it doesn't until you arrive at the correct number for how many boards work with no modifications. It it turns out to be 3 out of 4 then all the better but the correct procedures is:

1. test

2. collect data

3. propose solution

4. test solution

5. modify solution as needed

6 implement solution

as opposed to :

1. Propose solution

2. Implement solution