What do I claim on the W-4p form when filing for a pension paid to beneficiaries, not an estate?

[staxym]

Our father passed last year and left behind a small pension that we needed a "small estate affidavit" to have disbursed.

Now we (brother and I) each need to fill out a W-4P form. We live in PA and he lived in FL, but I believe we still need to withhold taxes.

What is the best course of action, to fill out the W-4p with income, or have the "minimum" taken out automatically and save aside extra for next taxes?

Thank you!