I think skipping doses might actually increase the likelihood of addiction.
One of the things I recall that made oxycontin so problematic was Purdue's insistence to prescribe it as a 12-hour dose. There was an article I recall reading on the topic:
https://www.latimes.com/projects/oxycontin-part1/
> Experts said that when there are gaps in the effect of a narcotic like OxyContin, patients can suffer body aches, nausea, anxiety and other symptoms of withdrawal. When the agony is relieved by the next dose, it creates a cycle of pain and euphoria that fosters addiction, they said.
> Peter Przekop, a neuroscientist and physician who oversees the treatment of painkiller addicts at the Betty Ford Center in Rancho Mirage, said that repeated episodes of withdrawal from OxyContin “absolutely” raise the risk that patients will abuse the medication
To me skipping doses is likely to create those repeated episodes of withdrawal which even when minor can end up screwing with the brain's addiction centers. This is why I'd rather take other options that maybe only work for 5-6 hours instead of 12, but don't build this vicious cycle of addiction like oxy does.