Unless the RO has incredibly loose lips for some reason, the only thing I can think of is to see what is said if you indicate you want to go for / apply out for a SH position - if insufficient CEP is a blocker, the RO might hint that it might not be a fruitful venture for now.

But that's not guaranteed; and there are various other possibilities. Lots of potential for false positives/negatives. Think safer to just assume no good way to know.