You can evaluate the pack, but it begins with storage. For me Cubans need a longer drying time, I "drybox" at 60rh generally about a month or 2, but this also depends on storage from the shop: my B&M stores cubans to wet for my preference. Non Cubans I store at 67rh which I don't drybox. For cubans it is true they are tending to underfill a cigar, non cubans are generally more generously packed. After you got the storage method right I think your able to judge the pack of the cigar upon taking it out of the humidor. It should be springy but not soft. Hard parts in a cigar doesn't have to be alarming, they can soften up with heat and some steam. If you judge the pack to be right and it still doesn't work it could be a stem stuck. You have a couple of tools for those, I'm not gonna recommend one as the experiences with either are mostly biased. I don't have a tool as I haven't seen the need for it.
I hope this helps, my noobism in cigars is a bit less than in pipes.