Like I said, let's just see how it goes and we will adapt it if necessary. I don't think we are gonna need to really.
When you rip gear away from Guardians, it'll ultimately come down to who can charge first, especially with vigilance specs since they become CC immune after charging and will continue to dominate from there onwards without letting the enemy guardian build focus.
I disagree. Yes the one who gets the first leap has the advantage and can become immune, but it does not mean they automatically win. That can be said whether they are geared or not. It just requires you to use your noggin and adapt to the situation.
And you don't need the leap at all really. Yes it's helpful but it doesn't win duels. Just ask padawan Najeeke. 
JG Vigil spec rotation, saber throw, leap, sundering strike, instant high focus + 4 stacks of armour sunder which allows for plasma brand, followed by blade storm then overhead strike, fit master strike in after slowing them and they can't flee, then dispatch. Now with good gear that should kill anyone except a healer, without gear the outcome is questionable since plasma brands damage is based on your Str/Power stat and your blade storm/dispatch based on your surge. People stack these stats for a reason, they aren't naturally high without gear.
This is why dueling isn't a great way to judge PvP level, the rules are completely flipped on their head from true pvp, there is no battlefield awareness coming into play, it comes down to who has better gear (which your trying to remove), who has the better CDs and who can use those CDs properly. You also have bad class match ups in duels, for example GS/Snipers with moderate to high skill levels can stop a JG/SW of any AC or spec ever getting into range to do their damage, or knock them back once they are.
I've never been a fan of duels even though I do okay in them usually, it just has zero real pvp applicability. I guess your doing it for fun which is great, but honestly try to think about the other ACs and what they need to be competitive.
Like everyone on the PvP forums will tell you, the game isn't balanced around 1v1 but what each class can do to compliment one another, this is really what should be done, possibly in outlaws den.