i don't think there would be many dogs out there that could do 7 nights a week especially on its own with out being too sore(well I know mine wouldn't be able to do it they would be laid up for a while)unless your running Bunnys.
Running Bunnys only,night after night,will test the character and physicality of the finest bred mutt.
got to agree there mate,but if your not going for numbers,just one for the pot or ferret food,or dog food you can run them pretty much every night,we did in the old days atb mcyeah but if your running daft amounts for a few hours ad say 3 nights or 4 at the very m