My 2 methods
I have 2 methods. The best and most effective way i've found is to first of all allow him to engage you so the police start making their way to you (You must not be wanted for this to work). The moment you've taken fire from him, shunt all power to shields and the rest to engines and burn out of his firing range (roughly 3km). Stay circling him at this range until the police show up, it usually takes between 1-2 minutes. He will be firing long range missiles at you while you're outside of his laser range, but a point defence turrent takes care of that little problem. Once they show up, burn towards them to drag the conda within their sensor range. The police will scan both you and the conda and begin firing on him. Once the conda starts to focus on shooting police, you're free to put all your power into the weapons and start unloading onto his power plant subsystem. just don't get too relaxed as he can still insta-pop you if you're in front of his nose with that unique weapon of his.
The second way (which i've only managed to do once thus far), is to fight him solo. You will pretty much always need 2 pips of power to the engines to control the range and position of your engagements. You need to aim to sit right behind his engines. It takes quite a bit of piloting skill, but it's doable. While you are in the blind spot you are free to put all remaining power into your weapons. If at any time you fall outside of his blind spot, you need to always have power to your shields for maximum tanking ability. The one time I pulled this off ( it was actually roughly an hour ago, so proud of myself
) the police arrived roughly halfway through, however they stayed at long range and didn't help at all, I was not happy with them at all.
A shield cell bank is highly recommended, practically a must. I wouldn't have killed a single one of those elite condas without it.
Using the first method, I have about 10-20 kills under my belt.
Hope my experience is useful to you, good luck!
EDIT: Forgot to mention, this was all in a viper, half the kills with 2 small gimbled beam lasers and 2 medium gimbled multicannons.
the other half of the kills was with 2 medium gimbled cannons in place of those cannons.
The weapons you decide to use is pretty much down to personal preference, I find it's good to use a mixture of energy and projectiles. Gimbled weapons help for targeting that all-important power plant better.
