I purchased Titan's subsoiler with the optional pipe layer attachment. It works really well for ripping subsoil even on an L series Kubota! The problem we had with it is that although it says it's a category 1 rated attachment the pins they use for the side attachment on the 3-point hitch are not category 1 in size. Thankfully the pins are "bolt in" style, but we actually had to drill out the hole to 7/8" to fit a true category 1 pin after BOTH of the OE pins bent to the point of breaking. After we replaced them, we had no further issues with it and it allowed me to install a 1-1/2" water line for the house I'm building. So my only suggestion to Titan would be to just put a true full diameter 7/8" pin with a non-threaded shoulder on it from factory.