Why did my potatoes stick to the pan?

Insufficient heat or moisture can cause sticking. Make sure the skillet is hot before adding the potatoes and dry them thoroughly.

How do I keep them from overbrowning?

Lower the heat slightly during searing and monitor closely. If the butter begins to darken too quickly, reduce the temperature.

Yes, but they are more starchy and prone to crumbling. Yukon Golds hold their structure better while still becoming creamy inside.