Hi sb,
I can’t see your system so I really don’t know what to suggest except to say that “more airflow” would be less risky than “less airflow”. All of this is really about risk management and “best judgement” because it’s not really possible to know how all the risk factors of any particular situation will combine together in real life over time. In many cases even a solid surface would turn out to be OK (see post #10 here).
I don’t know which bed base you purchased but if it was one of the flexible ones then it may also change the “feel” of your mattress.
I would suspect that you will probably be OK but I would talk with John and then use “best judgement”.
Phoenix