Brown tips on Hinoki cypress

Dear Mirai friends,

I’m finding some browning on the very tips of the leaves of a Hinoki cypress. They are on some, but not all the leaves. One opinion I received is that it is a blight and I should use a 3 in 1 spray to deal with it. Another opinion said it was that I used my fingers rather than scissors to prune. Another said it was the opposite and that scissors caused it. I’m used to getting N + 1 opinions from N bonsai artists, but now reaching out to you all for your thoughts.

Thanks in advance,

David