Quick question
... a new 14 ft. boat deep v . I had previously had a 30 lb. anchor that was stolen with my boat and worked well. Made at our machine shop . Now , I’m not sure if it was overkill weight wise. What would your weight class for this would be . For still water fly fishing of course.
I think most would opt for 20-30lb for a 14' in the front and about the same or slightly less for the rear; it would absolutely not be overkill, though it will depend on how much effort you are willing to exert each time you need to move. If you like anchoring broadside to the wind to accommodate multiple people, then you might go towards the heavier end and same front/back. If you insist on staying out there in hurricane conditions, you might even have to go even bigger...
I'm not sure if I would be inclined to use cannonballs. You lose a lot of holding power due to shape, especially if you need to setup on a firmer substrate, which will happen occasionally. I know lead is expensive now, and pyramids are likely to be spendy, but they will give you the best performance, IMHO.