Here's a good photo that not only shows Hopkins' stance, but differentiates it from the square attack of De La Hoya:
Also, with regards to kicking, here's my thoughts:
- The weight being more towards the rear foot should make for easy checking of kicks, unless in a lowered stance. But that's where the principal of attacking upward at a guy standing tall TO kick could come in handy.
- One of the most efficient kickers I've ever seen was a Tae Kwon Do military instructor turned movie star, Hwang Jiang Lee. Hwang was known to use his lead leg like the lead hand of a boxer. No real power attacks, just flicking attacks to get the opponent off-balance, power attacks were concentrated with the rear leg. This makes sense when applied to a proper boxing stance as well. The Thai's MUST have realized this at some point, because the teep is designed just like a very efficient jab.
- Control of the center line is all about angle of attack. The angles don't have to be exactly the same. But there have to be two things in-place: distraction, opening. One leads to another. Some guys give false openings, so you use a tactic to distract them and create a real one. Some guys give NO openings, so you distract them to create any opening at all.
Think about this:
As many of you know I studied for years under Mike McCallum, and am now working with Merqui Sosa. Every trainer you'll come across will say slightly different things, as they have different experiences. Sosa never made it as far as Mike did, but he was a ranked fighter for a long time. One thing he recently said to a guy was this: "If your opponent is ready for you, why are you going to attack him straight on? I look at him, he's looking right at me, his defense is up...oh man, he's ready. If I go straight to him, I'm gonna get hit. So I change the angle, you can't go right at him...go somewhere else."
This should apply in nearly any form of unarmed combat. Just be sure your distractions and attacks end up exploiting an opening at the center line, and there you have it.