When I went looking for a new spot lock TM 4-5 years ago, it came down to a Terrova or an Ultera. I chose the Terrova because during my research, the Ultera just had too many problems with the Stow/Deploy feature. It's been a long-term problem for many, it's not an isolated issue. For what these TM's cost, I think MK should do better in solving the problem and offer its customers a solution.