Is your feature request related to a problem? Please describe.
Expectation is to use defaults unless there's a requirement/justification to have custom limits. There is neither for the code snips below, and no clear reason why the default limits aren't good enough (they should be fine).

Note for all but 1 case, the message limit value set is the same as the default (4).

Describe the solution you'd like
Either justify these differences or just use the default subscribe call.

Describe alternatives you've considered
None

Additional context
None

Requester Info
Jacob Hageman - NASA/GSFC