I mean, maybe my Soil Appreciation levels aren't high enough, but I feel like I get loam more frequently from tending weedy plots than I do from digging.. though I haven't really taken the time to do the math.
Is it one of those things that tends to pop up a lot when doing other tasks? I feel like I have a really hard time getting much loam at all, and I realize it's meant to be rare, but it feels REALLY rare, at times.