I've had Lockrights on both axles for years, daily driver--many winters--both a Ranger and then my B2--my first child came home from Columbus Regional in the middle position of the Ranger's 60/40 in a snow storm. The rear one you forget about in a week. It's a non-issue. The front one takes a little getting used to.
You have to understand--the Lockright unlocks with no force at all. On my truck I can spin the back tires by hand and they unlock--you hear the tock-tock-tock-tock-tock. The rear end behaves itself just fine--it is very predictabe. The front is a little different because the relative speed between the tires changes so much. It does not herk and jerk though--it just gives an unsteady feeling through the steering wheel. For instance, when you steer a little to the right the left tire speeds up because the ground pulls it faster than the inside tire. You feel the wheel push a little to the left because for a moment, only the right tire is driving. So on snow you feel the wheel a little. But you quickly get the feel of what is going on. I don't loan my truck to certain people in the winter because I don't want them freaking and slamming on the brakes or jerking the wheel and killing themselves. But if you have the brains to operate something like a chainsaw without cutting you head off you will be able to figure out your winter lockers. I drive along just like it was a sunny day out on icy roads because I have the feel of it. And I also know that if I go in a ditch, I'm driving right back out again. I pulled a Jeep with 35s out that had 2 open axles. Both his higher tires were spinning. I wouldn't dream of not having real lockers on both axles because I hate to be stuck.