433 hops with no sales is quite normal if the product or blah blah... You should analyze the stat before it reach that much without making any conversion! Just my suggestion.
I wonder why you've been sending that much traffic the product doesn't convert in its first couple hundred of hops in the first place... Some products in CB can eat thousands of dollars in adwords and not turn one sale and you may already know that
All other campaigns are so so, but only this one that eat my money and doesn't convert. I usually get at least 1 conversion in 100 to 150 clicks and I profit 40% up to 50% what I spent.