Sorry to burst you bubble, but kalis' skating has never been praised for his spot selection. 90% of his footage is at love, and the rest is at spots people skate regularly.
as far as shane not having a "headquarters" (nigga ,are you serious? these people are skateboarders not super villians) he might not, but he still skates a shitload of the sames spots in a lot of his parts. That means he probably goes to skate those places often, even when not filming. Now that think of it, a lot of people skate a lot of local spots around them. Most people (on slap, not actual skateboarders) actually say those dudes are boring, because they spend most of their day skateboarding instead of looking for shitty spots.