No I do not.

I dont really see the need for lockers unless you are into rock climbing.
All of the Camel Trophy's were ran with bone stock Land Rovers, the only things added were safety gear and winches, so if they can cross the Amazon during the monsoon season without lockers then why do I need one to get to my deer blind?

Now if a guy just wants one to just want one I wont hold that against him, those pot holes in front of Target can get pretty big.

 

lol I thought it was like a common upgrade.

 

It is a common upgrade but I personally do not think it is necessary for 98% of off roaders.
I would like to have it in my work van for the winter time, but it is not needed in my Rover, not for the type of wheeling that I do.
We dont have big rocks here, and if there is something that I cant make it over/through then I go around.

Each to their own, but personally, I dont think lockers are for every one.
A good set of A/T's, and driver skill will get you 90% of where you want to go and even to some places you did not want to go.

Watch the top video, you will need to pause the second one first.
This was with a bone stock street tire equipped DI...
http://www.offroadbigbear.com/Landrover.html
Supposedly one of the hardest trails in BigBear.

 

Awesome videos man..This truck is like a tank..

 

The best 4x4 by far.

 

I have done some pretty difficult off road trips with open axle differentials and the CDL locked. I personally think that a good set of aggressive tires is more important and cost effective than lockers. Most important is to get out and learn the vehicle and what it can do. If you don't know what the vehicle can do stock than you waste a lot of money upgrading things that don't need upgraded.

 

RRs have a viscous clutch that engages the diff lock automatically when wheels slip. I wonder if the same unit can be fitted on a discovery.

 

Are you talking about the center diff lock or a axle diff lock?

 

It says in the owners manual that it is a viscous clutch that automatically engages the center differential.

 

Ok, we are talking about lockers for the axles not the center differential.
What your RR viscous locking center differential does is the same thing that we need to do with a shift lever for our Disco's.