Never swung the pro-staff classic but spec-wise, you could get the blade there.
I made these mods because I wanted to use those smooth, relaxed strokes, as I do with my heavier sticks, yet keep the forgiving feel of the Blade + get it more head-light, thus all the weight (-1gram) is in the handle.
Not saying you can't use smooth, relaxed strokes with the blade stock but the balance and weight weren't what I was used to.
Stanīslas 'il LÝbertador' Va'vriŋka
~ To become Glory