I used a petsafe system with my two dachshunds. Trained them on it for about 6 weeks before they got the hang of it. My male dog was so scared of it I only put his collar on him about once a week, the female was a whole different story. She absolutely despised birds, flying grasshoppers, butterflies, bees, wasps, and helicopters. Anytime something that flies would come through she would go crazy trying to get to it and started getting out of the fence. I watched how she did it one day, she would run as fast as she could and right before the shock zone she would shake her head back and forth. I guess with the probes on the collar moving it didn't hurt as bad, she would yelp and be out. She ended up getting run over in the street.

I installed mine, it's not hard. I used a edger to make a small trench around the perimeter of the yard and crossed the driveway in an expansion joint. Lightning will wreck the control box if it hits a close by tree. There is nothing special about the wire, I used some cheap wire from Lowes. I may still have the collars if you end up going with that system, let me know and I'll look.