Sky High clinic is a flashpoint in Santa Ana's pot wars

Marla James spends her days volunteering at the Sky High pot shop, navigating her wheelchair through the busy Santa Ana storefront, which serves more than 250 clients a day.

Customers peruse weekly specials listed on a chalkboard advertising strains such as Purple Kush, King Louie and Charlie Sheen.

A medical marijuana patient herself, James warmly greets each client, handing out bite-size samples.

“It’s like a Costco,” she says with a laugh.

For the past six months, a defiant James and her attorney have been locked…