"Full hoist" is shorthand for a jib that goes to the top of the forestay. Sometimes a jib is cut for heavy air, and does not go all the way to the top; this lowers the center of effort to reduce heeling.
I recall the designation of a 'blade' jib as being less than 100%, and being hoist all the way up the stay.
The nicely-detailed picture you posted is indeed the type I was referring to.
The link I posted in reply 2, shows our jib sailing close hulled. The light across the said makes the three battens a bit hard to see, admittedly.
I agree with Christian's comment in reply 3, about how the sails (and tacks) much more like a dinghy with the small-overlap jib.