I also would not let him outside without direct supervision with no fenced in backyard. There could be predators out there, whether we see them or not. Or the dog could see prey and go chasing after it and then your dog is gone. I think what you have going on now is just fine.
__________________  The T.U.B. Pack! Toto, Uni, & Bindi
RIP Lord Scrappington Montgomery McLimpybottom aka El Lenguo the Handicapped Ninja 10-12-12 
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