So I think anyone can find an effective fighting method in Progressive Kenpo-Jitsu. Again thank you for the compliment, I do work drills, but not really for speed. I use the actual wazas through high repetition to gain speed. The main factor I tell students to increase their speed is to utilize their blocks and checks to feed the speed and momentum of their strikes when possible. I think speed development through actual fighting techniques is better.
Muscle has memory and the nervous system learns through repetition.
I think all techniques can be effective on the street if properly used and developed. Personally, I like to fight more on the inside range, I like to use the low line kicks combined with rapid fire hand strikes to get in close for elbows and knees. That works for me. I think if students are taught the ranges and how to flow through those ranges they will then find what zone comfortably fits their personal fighting skills. Yes, contouring is a concept using the outline or silhouette of your opponents body as a guide to track to primary striking targets.