In my second play test I had a great experience, a group of guys played my game while I watched and took their criticism and discussed different options. The list grew larger. And larger. And larger. It was great that there were lots of things that will (hopefully) make my game better, but how do I implement this in the next playtest? Do I make all the changes at once and see which ones work and which ones don't? That seems like it would be a huge time eater, as each test has taken 3 hours and the end is not in sight, though that's also because of learning curve.