I purchased one last week and I'm not happy with it. The blades are so close together, it doesn't rinse well and I get a lot of cuts- something I didn't with the Mach 3. The extra blade on the back is useless.
My Mach 3 works just fine except it gets dull too fast.
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!
You could use alcohol to clean the baldes. Just rinse the blade before use. You might want to try Lumene Skin tech shaving creme.