Hi everyone,
I've been using Deltas on my main ride for 8 years.
My personal opinion:
The single best improvement you can make is to get rid of your current cable system, and buy yourself some Gore Ride-On cables. The improvement is tremendous. However, Gore cables are expensive. I can fully actuate the rear brake with my pinky, not a panic stop mind you. I don't brake using my pinky, 2 fingers for me, but I use this example to demonstrate how easy the brakes operate after the cable replacement.
Marc Boral
Long Beach, CA USA