I like the Quattro, abut it has the same problem you mention. My whiskers tend to be fairly thick (and I work at home so don't shave every day) and when I let it go, the whiskers get stuck in betweenthe 4 blades and it doesn't rinse well at all.
Still, I like the shave. If I am careful to rinse about 2x more often than past blades I have used, its fine. I suspect 5 blades is overboard!
The Fusion is better than the Quatrro in my opinion. I wonder if the moonbats are still accusing Gillette of "tracking" people?
I use the Quattro too.....however, I find the prices of refill catridges to be outrageous.
I have the same problem with the Quattro on facial hair than is longer than a 2-day old stubble.