I have 4 rows that include data for the activity. Each row has 1-8 cells. Each cell has a descriptive header and a rich text control right under it for input (all in one cell). The form starts with one table. If the user needs to add a second, third... etc activity, they click a command button that adds another 4 rows (inserting a quick part which is essentially a copy of the first four rows).

So to answer your question... I have a lot of flexibility. I can keep the four rows in separate tables or keep then appending into one table. Whatever works faster or more stable.