Prototype Bio Slip Lead

Hello Rob,
I am trying out this prototype lead given to me by Jennifer Leitao she is a handler for my dogs.
I do like the Biothane smooth material, it has a good grip to the material even when wet and does not easily slide through the hands.
The reason I like it smooth rather than the Hex style leash -I would anticipate over time and use it would show some grime in between the grooves or the hex pattern and be more time consuming to keep clean.
I like the stitching to match the color of the lead. I find it very strong enough to hold up to walking strong male Labradors.
To be honest I had purchased your special edition Potomac lead last year at the show with metal bolts and have loved using it. It shows no wear or rusting so far and has held up well. The bolts are holding together well.
Thank You for such a nice product
Sincerely, Sally Cavicchi [****]