Yours would be stronger but I bet Squish is faster... much of a muchness, I suspect! He can certainly outrun Spike easily, though Spike has better acceleration, brakes and steering.

that might be a good thing to use if I go back to using a long line - which I may have to, I guess. I just hate them a lot. So far with Squish, long lines have only been effective on the days he didn't try and take off anyway.