Just built my first wheels (Open Pros on Cotic hubs, DT comp spokes). They’re laterally and radially true, and I’m at the final tensioning stage. How do I know when to stop? They sound tight ( high-ish pitch), but what happens if I over tension them?

try grabbing “pairs” of spokes

grab parallel pairs (sets of spokes that are parallel to each other)…they should feel tight when pinched with your fingers

we use a Park spoke tension meter in our workshops to sometimes check if we are not sure, but you get a good feel with your fingers with some practise