Running a deep till rig remains a popular way to loosen farm ground, but the finish left by a lot of rigs isn't popular. Blu-Jet offers a solution for its Sub Tiller 4 rigs with the new folding roller. The folding design means you can add a roller and still fold up the rig for transport. The folding roller starts at $7,700. For more information, call (800) 658-3127, or visit www.thurstonmfg.com.