Working on the Carp Fly Box for 2012

I am just starting to build my 2012 seasons fly box for Carp.  The majority of the flies will be Zimmermans Backstabber in varied colors, wine, white, rust. Also included this year will be some type of dry fly to imitate the top water version of a Cottonwood seed.  Our local ponds in Northern Colorado are surrounded by huge Cottonwood trees and these trees shed huge amounts of white fluffy seed that carp sip as they are cruising.
I plan to tie the Cottonwood dry fly using a foam parachute surrounded by either white CDC or white hackle.  
As I learned this past season, I will have to tie up several different weights of each color Backstabber.  On rougher water the heavy weight flies will sink faster and settle into the stick zone much faster.  The mid weight fly tied with just chain eyes will sink as a much slower rate and disturb the water less thus allowing me to cast closer to spooked fish.  Non weighted flies will ride high in the water and draw surface strikes on very calm, glass like pools.