Never like the Oxen Blocks. Doesn't make sense that you have to pull a sheet that is already tight to release it.
This is absolutely the best block on the market for jib sheeting as it is ratchet when pulling and holding, and free-wheeling when load is released. Fewer blown tacks.
https://store.catsailor.com/pc/viewPrd.asp?idcategory=0&idproduct=8833Rick