Got a problem area in your shot that just isn't working?
Afraid to change the shot for fear of wasting time or destroying what you have accoplished?
Presenting Dr. A's 30 minute solution.
Step 1: Save your work
Step 2: Record (and save) a playblast recording
Step 3: Spend 30 minutes on selling new idea
Step 4: Record (and save) a new playblast recording
Step 5: Compare recordings and decide which one is best
If the new version isn't better, you can go back to your old version knowing that you only took 30 minutes.
If the new version is better, you can proceed knowing that you only took 30 minutes to get there.
Hope this helps.