counterbalanced crank welds

[oldspert]

I bought a Model A engine that has a counterbalanced crank. Was inspecting the crank and found it only has what I consider tack welds on each end of the weights. It has the safety bolts holding the weights to the crank, but very little weld. I'm not sure that is sufficient to keep everything from coming apart. I can weld more area to the crank, but should I have it rebalanced? After V'ing out the area and adding weld, it might be a wash on weight. The crank was done many years ago by a place called Ron's in Ohio. Still in business?