So, i was just wondering what people use to protect climbs on buildings.

I have a few climbs where even a  psychological pice would be helpful, and one where i would not climb it without a rope. I plan on just using slings, and tying off stuff or using the german “soft nut” technique. Also, there is 8-ish inch offwidth i am spying, but dont have any cams, so i was wondering how well a cammed 2×4 will work. I have seen them used for aid before, but wonder if they will hold a short lead fall.

thanks for any info/help in advance