Search customers by Pricing Method

SUGGESTED

So we are doing a massive overhaul of our system, and one big thing we have to do is change customers pricing method. We have about 2300 customers in our system, but not have custom saved pricing. We are moving from Price Discount % to Price Override. For the past week I have been just clicking into customers accounts, opening their saved item menu, and changing them over manually line by line. Some customers have none, and some have up to 400 saved items, so this is going to take a while. So, my question is, is there a way to do a search of all customers who have any items saved by a specific pricing method?

It would help eliminate a lot of time if I had a list of all customers who have any items saved by Price Discount %?

Thanks for any help offered.