Is it better to store data in multiple measurements?

We are migrating db from mysql to influx. we have multiple tables in mysql which can be merged as one measurement. I was thinking of merging them because it will potentially reduce the series count. Is it good idea to merge them ?

What is better ?
A. 1 measurement with 300 fields+tags
B. 6 measurements with 50 fields+tags each.

If the measurement and tags represents the same logical object and the tags apply to all fields, then I would merge them into one measurement. On the other hand, if it is a set of unrelated fields then use multiple measurements.