Question for those with front disc and rear drum.

[Lugnutz65]

If you have disc front and drum rear, what hard line are you running to the rear wheel cylinders? 1/4" or 3/16"?

I'm about to plumb new hard line. I'm keeping my original 1965 rear drums. I'm nearly 100% sure my rear drums have the stock setup with 3/16" hard line running back from the common 1/4" front drum line.

Has anyone switched their rear drums to 1/4" line? My new front disc brakes will be 3/16" line. The MC uses a 1/4" line for the rear brakes and I was thinking of switching the rear drums to 1/4".