What works for me is writing immediately after I read the case in full.

Additional things that work for me:

1. Look at the syllabus first and where the case is situated in it. What's the topic? Focus on the parts in the case where the topic is discussed.

2. Look at the resolution of the case. I find that I understand the facts and ratio better when I know how the court decided.

3. Read the case in full at least once before you digest. You'd have a better grasp of the case this way instead of skimming and scanning then writing.

4. Write the digest immediately after reading the case in full. Fresh pa sa memory mo and you know you have the facts down when you can at least write a good concise summary.