Is that the definition of invisible boost? What about the crystal saw? It boosts, but DOES allow you to craft higher level items...and it's not a visible boost. It doesn't seem to make much sense...higher levels (especially only a +3 level boost) doesn't make THAT much of a difference...so why have an "invisible boost" at all? but construction isnt one of those skills where building oak larders at 90 is faster than 33