As you're probably aware, you are better off without it.
The extra volume (without the stuffer) is a good thing, especially when making any sort of turn. The only real advantage I have found is that the pump hooks up a bit quicker when landing from a jump. This may or may not be a good thing for you, but I have found that when racing or surf riding, they are more of a hinderance than anything.
Like most things though, it's worth trying just to see what you think...a lot like when you tried the skat swirl prop and found it to work better than expected...