I'm planning on flushing & bleeding the brakes on my 03 Yukon XL 2500 but apparently the ABS will be a problem because I don't have a scanner to open the valve. I was planning on doing the "Dirt Road Stomp and Slide" but I came across an "ABS Brake Proportioning Valve Depressor" and wondered if it would work in place of the scanner. The Depressor looks just like a tool I had for my Brake Proportioning Valve on my 79 GMC Jimmy, so I don't know if it's a mis-print or not. I would have to buy (2) of them for around $50. Has anybody used this?