I know a guy that makes custom stocks (Brush Creek Rifles)...he is pretty darn good at it.
Brush Creek Rifles - High Quality Walnut, Cherry and Maple stocks. ...he has another page somewhere, but I can't seem to remember how to get there.
This is what he says about it...
Laminate stocks are as stable as fiberglass...
IF...it has no more than 3-5 layers of wood. Stocks such as most of Boyds with 13 (?) layers...those are OK, and look nice...but are not as strong as a 3 layer stock.
What he says makes sense when you look at how the action is secured to the stock...2-3 holes right down the middle.
EDIT: In case any of you decide to call him...I don't think the phone number on that webpage is any good now...I have his cell # but I'm not gonna put it here without his permission.