Twenty doors knocked or a hundred calls made, if I only have Saturday

I get one real day a week for this and I keep splitting it badly.

My background is on the build side, so from the street I can tell you a roof has two layers on it, the gutters have been dumping against the foundation for years, and nobody has touched that siding. That's a condition signal a list doesn't have, and the houses I'd knock are the ones I picked with my own eyes.

Against that, a Saturday of knocking got me eleven answered doors and three conversations, and one of those three was a man who wanted to tell me about his neighbor's dog. A Saturday of calling from a list of skip traced absentee owners gets me maybe fifteen live conversations, and I can do it in a chair.

The part I can't settle is whether my construction eye is worth enough to pay for the volume difference. The knock version means I know what I'm buying before I open my mouth. The call version means five times the owners hear from me and I find out about condition later, from a photo or a walkthrough.

For somebody in the first six months, which one teaches you more and which one produces more? I don't think those have the same answer.