That's totally open for debate man.
You need to provide the following to begin.
How much weight do you wakeboard with, crew+ballast
How much weight do you surf with, crew+ballast
How many hours on the boat or engine, are you the original owner? If not, what do you know about the original owner and their use?
You cannot stick it to weighing the boat down, or surfing for that matter. There are just too many variables. If two DD SN owners speak up, an older SN2001, and then your exact model; both running ok with 3k+ in water and lead, what does that mean?
The question is what do you know about your boat.