My latest iteration of burst econ Sunny has 3 Gamble, 2 Laundry, 3 Modded, 2 Temujin and 2 Career Fair for burst, and 3 Contacts, 1 Visage, 1 MO, 2 Casts for drip. I definitely prefer the faster payout of Casts. Visage is essentially Underworld Contact #4, and also superior to Data Folding as tempo drip econ. Those Temujins used to be Lucky Finds. I also have Yog to make small codegates irrelevant.
We've talked about this at length before, but my opinion is that Magnum Opus and 2-3 Contacts is plenty of late-game econ, when you've already got your suite installed. The tricky part is getting there.
I strongly suggest you can get better returns out of your last 2 MU in a number of ways by spending influence, rather than leaving them fallow for Data Folding. Data Sucker, Magnum Opus, Paricia, Multithreader, etc. I've had decent results running Knights for early remote sniping.