yep...thats the bees knees right there.
Me and the mrs tried this strap that goes in front of her legs around the hip area and it assists in better handling for doggie. No slipping for those times when it gets sweaty and vigorous. Only used it once or twice because it worked too well. I was able to move muuuch faster and harder and it was awesome but not something to do all the time.
I dunno quite why, but I am picturing Wile E. Coyote and Road Runner with an Acme Co belt sproining together, apart, together, apart, together, apart, faster and faster until something disastrous happens.
I think I am a sick puppy. Or Piggy, even.