I have just ordered a couple harnesses from Stomper but currently use a Stillwater harness for drag work . I have been dragging chain and window weights but once these harnesses get in I will be competing . I plan to do ADBA and I believe there is over 45 lbs and under classes . They did change things up though , sure their website has all the info . Bigger breeds and pit bulls , remember Land Of The Giants pitbulls ! I visited the yard and was not convinced they were pure . He wanted to buy a male I had in the early 90's once he saw him . Had a friend bring me to his yard because he didnt believe how big my Bullseye was . He was like 80 lbs hog fat , big ole bastard .