Is it Safe to Use High-Multiple Fund Model Results Before Thorough Validation and Scrutiny?

My fund model is coming in really high multiples. I am suspicious. Have sent to my team for additional layers of extreme validation and scrutiny but I’m afraid to put these numbers in the deck until I can really really defend them. Does anyone else have this issue? I feel tempted to pull some standard off the shelf numbers and put them in for now until we can validate these further and I feel more solid in them…but they’d be wrong. Thoughts?