Yes, it would be best to get a few more good sessions. Ideally 3 good ones (with different board orientations). My advice is to get as many good logs as you have patience for. During the first step of calculations, using different logs in different combinations will yield different MAE values, and it is nice to be able to pick the best combination. And it is easier to do the freezing process now while the board is out and you have it all set up. I'd say at least 2 good logs is minimum for a decent solution, though I know some people have done it with one (success is somewhat relative anyway
).
-Max