I doubt if there’s a quicker or more effective one per se, because neither of those guys strike me as the type to waste their own time or their readers’ adding useless padding and frills to their work, and the spirits they work with are not into lazing around either - arguably, this is a spiritual revolution, and the forces aren’t inclined to send us via the scenic route.
That said, as for alternate routes (which may have different destinations - I’m not remotely claiming they’re the same thing) I did get my chakras altered rapidly over a series of a few days back in early 2014, logged it in this thread:
That turned out to be a preface to conceiving a demonic Child so I didn’t explore that current to its fullest or come anywhere near the level of immersion that Kurtis has done with it, I kinda just stopped by to get enough demonic energy for the conception and birth.
It’s possible that you could evoke one of the spirits of that current and ask them about doing something similar for you, inverting and alchemically altering your chakras.