I prefer to CA bridge pins without strings to prevent contact with the string and buildup of CA in places hard to get to. I will do it on my current project before stringing begins. I consider it important that the CA be allowed to work itself down to the bottom of the pin hole and then rise to the top of the bridge thereby filling the hole entirely and holding the full length of the pin in the hole. If you have a miniscus ring stand for a few seconds without diminishing you know the hole is fully filled then use a tissue corner to wick up the excess. Otherwise you may not get the full benefit of the CA project. On the Nordska I would remove an offending string and see what is under it Also check bearing, side bearing, crown and string termination. Newton
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