Recently, I've tried to start using Poker Snowie to evaluate/improve my play.in spots (of NL25 games) where it considers me to have blundered. However, compared to my games, Snowie's starting ranges seem to be much tighter preflop. This has knock-on effects on opponents' ranges preflop and on later streets.
So, when looking at 3b+ pots, it tends to give advice that doesn't seem totally practical, and in many cases, it has no suggestion since villain could not have gotten to that point with those hands.
I'm wondering:
Has anyone else had similar experiences?
Does anyone have suggestions on how to handle these issues?
Given these issues, what are the best ways to utilize the tool and the ways to work-around?

I'd also be curious if anyone has tried to implement Snowie's ranges and what they found...