If you decide to go with the Precision Dogs Parallel Guides for your track saw, you cannot find better customer service than Jerry. When I ordered mine I did not understand how they worked and ordered the basic set from the photos. The basic set does not allow you to make cuts narrower then the saw's track. When I discovered this I contacted Jerry at Precision Dogs to see if an upgrade (the 2 bars and screws) were available on Ebay. Jerry said they were not, but he could send me a PayPal request for payment and I could purchase them that way. To make a long story short, I had the upgrade I wanted in my hands in 2 days across the country! I felt like I was the only customer he had to deal with.