Lewis do you mean the Gardner Speci - beaked , or the Gardner specimen hook? the Specimen are a thicker gauge wire mateNot the specimen range, they aren't very good IMO, weak wire and the guage is finer and the eyes are a bit off. I tested them a few years ago and didn't like them.
It's the new Barbel Specimen Hooks that are the same as the Talon Tips I'm told.
Thanks
Lewis