anyone using the sliders from kevins offroad on their xk?

[El Cid]

I have the Rocky Road Super Sliders, and they sound exactly like what you are describing. They have the square tubing underneath and they stick out. While they are sold as also being a step up to the roof, they only stick out far enough to put my toes on, so they are semi-useful for that, but not much.

As I'm sure you know, this is precisely what our Side Guards give you: a toe-step for accessing the roof. It's all I've ever needed, but if you want a full-foot step for standing on for a long time you definitely need to look elsewhere. You're also more likely to have issues with the rails bending, as the further the rail sticks out from its mounting points the weaker it becomes.