Some of the most legendary cuts were bag seed prone to hermie.
Please share what exactly you mean by solid genetics. Do you mean a breeder who has worked a strain, or many of the new fads being hitting their signature male to any and every clone only that carries a following? Solid? I guess thats just a matter of opinion.
So I guess it boils down to what the genetics of your bag seed are, and how stable the genetics are regardless of hermit traits you could have some locked down genetics. Or if you comparing a selfed seed of a unstable polyhybrid to a well worked f4, f5, or f6 that has been selected and breed for specific traits, you should assume the obvious.
I really like sannie for stability. His seeds could be confused for clones on some of his strains, I just wish he worked with more my style of plant..
If you want to do your own pheno hunting hoping to find a mother or father dom plant than look at many modern day breeders should give you the variety to fit what your looking for.
To directly answer your question, I have had some great smoke from bag seed I have found in a bag of what I consider dank. Sometimes better than I would expect out of a cross of polyhybrid crosses.