Red Code IMO is a good string, and has a crisp, solid feel to it when it is hit, rather than the Big Ace which has nice feel in the beggining of its life, but then gets mushy really fast and then feels dead.
Blue Gear gave me a lot of spin potential, giving me big topspin shots, but it was harder to generate flatter balls when needed. It also felt poor at the net, because there is simply no feel. It's like a board.
For groundies, I liked hitting with the Red Code the most, because of its crispness and balanced power and spin. I could flatten winners out.
For serves, the Blue Gear gave my slice and kick serves a lot of action, but my flat serves were a bit off. I was most impressed with the Red Code in this category.
At the net, it goes to either the Red Code or Big Ace. The Big Ace gave me some touch and feel up at the net, while the Red Code was very crisp and solid.
Spinwise- Blue Gear
Feel- Big Ace (At first, but then dies out and turns mushy)
Power- Big Ace/Red Code
Comfort- Big Ace
Pricewise- Big Ace
Performancewise- Red Code
I occasionally use Pro Supex, but my main strings are Red Code, SPPP or Hurricane Tour.
*Red Code hybrided with Gosen is a great combo.